diff --git a/city-modelling.html b/city-modelling.html
index c1a9333..e92db11 100644
--- a/city-modelling.html
+++ b/city-modelling.html
@@ -42,7 +42,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/interface.png" />
+                <img src="images/city/interface.jpg" />
                 <figcaption>Интерфейс системы</figcaption>
             </figure>
         </div>
@@ -55,7 +55,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/libraries.png" />
+                <img src="images/city/libraries.jpg" />
                 <figcaption>Нагрузка на библиотеки и их пешеходная доступность</figcaption>
             </figure>
         </div>
@@ -69,7 +69,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/clinics.png" />
+                <img src="images/city/clinics.jpg" />
                 <figcaption>Нагрузка на взрослые поликлиники и потенциал их размещения</figcaption>
             </figure>
         </div>
@@ -90,7 +90,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/pools.png" />
+                <img src="images/city/pools.jpg" />
                 <figcaption>Перегруженные бассейны и высокий потенциал их размещения в районах Северное и Южное Тушино
                 </figcaption>
             </figure>
@@ -107,14 +107,14 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/add.png" />
+                <img src="images/city/add.jpg" />
                 <figcaption>Добавление нового бассейна
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/update.png" />
+                <img src="images/city/update.jpg" />
                 <figcaption>Обновленная ситуация в районе после строительства нового бассейна
                 </figcaption>
             </figure>
@@ -130,7 +130,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/sufficiency.png" />
+                <img src="images/city/sufficiency.jpg" />
                 <figcaption>Обеспеченность взрослыми поликлиниками и школами (синий – высокая обеспеченность, бежевый –
                     низкая) и нагрузка на соответствующие объекты
                 </figcaption>
@@ -138,14 +138,14 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/new-house.png" />
+                <img src="images/city/new-house.jpg" />
                 <figcaption>Добавление новых ЖК
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/sufficiency-new.png" />
+                <img src="images/city/sufficiency-new.jpg" />
                 <figcaption>Обеспеченность взрослыми поликлиниками и школами (синий – высокая обеспеченность, бежевый –
                     низкая) и нагрузка на соответствующие объекты после появления новых ЖК
                 </figcaption>
@@ -158,7 +158,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/history.png" />
+                <img src="images/city/history.jpg" />
                 <figcaption>История действий пользователя
                 </figcaption>
             </figure>
@@ -174,28 +174,28 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/hex.png" />
+                <img src="images/city/hex.jpg" />
                 <figcaption>Отображение показателей по сотам со стороной 200 м района Раменки
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/square.png" />
+                <img src="images/city/square.jpg" />
                 <figcaption>Отображение показателей по квадратам со стороной 500 м района Раменки
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/diagram.png" />
+                <img src="images/city/diagram.jpg" />
                 <figcaption>График обеспеченности по всем категориям по району
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="images/city/shap.png" />
+                <img src="images/city/shap.jpg" />
                 <figcaption>График интерпретации прогноза спроса на взрослые поликлиники
                 </figcaption>
             </figure>
diff --git a/emergency.html b/emergency.html
index aa5a01e..4793716 100644
--- a/emergency.html
+++ b/emergency.html
@@ -43,7 +43,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/emergency/cover.png" />
+                <img src="images/emergency/cover.jpg" />
                 <figcaption>Интерфейс системы</figcaption>
             </figure>
         </div>
@@ -57,7 +57,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/emergency/import.png" />
+                <img src="images/emergency/import.jpg" />
                 <figcaption>Импорт исходных данных</figcaption>
             </figure>
         </div>
@@ -85,7 +85,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/emergency/shap.png" />
+                <img src="images/emergency/shap.jpg" />
                 <figcaption>Интерпретация прогноза – визуализация вклада различных факторов в прогноз склонности жилого
                     дома к возникновению течи в системе отопления
                 </figcaption>
@@ -100,7 +100,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/emergency/sim.png" />
+                <img src="images/emergency/sim.jpg" />
                 <figcaption>Симуляция аварии на тепловом пункте
                 </figcaption>
             </figure>
diff --git a/en/city-modelling.html b/en/city-modelling.html
index 17f59ab..be4ecad 100644
--- a/en/city-modelling.html
+++ b/en/city-modelling.html
@@ -42,7 +42,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/interface.png" />
+                <img src="/images/city/interface.jpg" />
                 <figcaption>Интерфейс системы</figcaption>
             </figure>
         </div>
@@ -55,7 +55,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/libraries.png" />
+                <img src="/images/city/libraries.jpg" />
                 <figcaption>Нагрузка на библиотеки и их пешеходная доступность</figcaption>
             </figure>
         </div>
@@ -69,7 +69,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/clinics.png" />
+                <img src="/images/city/clinics.jpg" />
                 <figcaption>Нагрузка на взрослые поликлиники и потенциал их размещения</figcaption>
             </figure>
         </div>
@@ -90,7 +90,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/pools.png" />
+                <img src="/images/city/pools.jpg" />
                 <figcaption>Перегруженные бассейны и высокий потенциал их размещения в районах Северное и Южное Тушино
                 </figcaption>
             </figure>
@@ -107,14 +107,14 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/add.png" />
+                <img src="/images/city/add.jpg" />
                 <figcaption>Добавление нового бассейна
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/update.png" />
+                <img src="/images/city/update.jpg" />
                 <figcaption>Обновленная ситуация в районе после строительства нового бассейна
                 </figcaption>
             </figure>
@@ -130,7 +130,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/sufficiency.png" />
+                <img src="/images/city/sufficiency.jpg" />
                 <figcaption>Обеспеченность взрослыми поликлиниками и школами (синий – высокая обеспеченность, бежевый –
                     низкая) и нагрузка на соответствующие объекты
                 </figcaption>
@@ -138,14 +138,14 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/new-house.png" />
+                <img src="/images/city/new-house.jpg" />
                 <figcaption>Добавление новых ЖК
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/sufficiency-new.png" />
+                <img src="/images/city/sufficiency-new.jpg" />
                 <figcaption>Обеспеченность взрослыми поликлиниками и школами (синий – высокая обеспеченность, бежевый –
                     низкая) и нагрузка на соответствующие объекты после появления новых ЖК
                 </figcaption>
@@ -158,7 +158,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/history.png" />
+                <img src="/images/city/history.jpg" />
                 <figcaption>История действий пользователя
                 </figcaption>
             </figure>
@@ -174,28 +174,28 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/hex.png" />
+                <img src="/images/city/hex.jpg" />
                 <figcaption>Отображение показателей по сотам со стороной 200 м района Раменки
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/square.png" />
+                <img src="/images/city/square.jpg" />
                 <figcaption>Отображение показателей по квадратам со стороной 500 м района Раменки
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/diagram.png" />
+                <img src="/images/city/diagram.jpg" />
                 <figcaption>График обеспеченности по всем категориям по району
                 </figcaption>
             </figure>
         </div>
         <div class="section">
             <figure>
-                <img src="/images/city/shap.png" />
+                <img src="/images/city/shap.jpg" />
                 <figcaption>График интерпретации прогноза спроса на взрослые поликлиники
                 </figcaption>
             </figure>
diff --git a/en/emergency.html b/en/emergency.html
index 6ad5e29..e99e261 100644
--- a/en/emergency.html
+++ b/en/emergency.html
@@ -43,7 +43,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/emergency/cover.png" />
+                <img src="/images/emergency/cover.jpg" />
                 <figcaption>System interface</figcaption>
             </figure>
         </div>
@@ -59,7 +59,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/emergency/import.png" />
+                <img src="/images/emergency/import.jpg" />
                 <figcaption>Import of source data</figcaption>
             </figure>
         </div>
@@ -91,7 +91,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/emergency/shap.png" />
+                <img src="/images/emergency/shap.jpg" />
                 <figcaption>Propensity prediction interpretation - visualization of the contribution of various factors
                     to the prediction of the propensity of a residential building the occurrence of a leak in the
                     heating system
@@ -107,7 +107,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/emergency/sim.png" />
+                <img src="/images/emergency/sim.jpg" />
                 <figcaption>Simulation of an emergency at a heating point
                 </figcaption>
             </figure>
diff --git a/en/postnet.html b/en/postnet.html
index d89656c..a6448db 100644
--- a/en/postnet.html
+++ b/en/postnet.html
@@ -41,7 +41,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/postnet/cover.png" />
+                <img src="/images/postnet/cover.jpg" />
                 <figcaption>System interface</figcaption>
             </figure>
         </div>
@@ -58,7 +58,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/postnet/location.png" />
+                <img src="/images/postnet/location.jpg" />
                 <figcaption>The projected monthly number of sales in the selected location is 257</figcaption>
             </figure>
         </div>
@@ -75,7 +75,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/postnet/diagram.png" />
+                <img src="/images/postnet/diagram.jpg" />
                 <figcaption>Interpretation of the prognosis – visualization of the contribution of various factors to
                     the order quantity forecast
                 </figcaption>
@@ -99,7 +99,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/postnet/konkovo.png" />
+                <img src="/images/postnet/konkovo.jpg" />
                 <figcaption>Living residencies and retail district Konkovo with a monthly order quantity forecast of
                     more than 200
                 </figcaption>
@@ -112,7 +112,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="/images/postnet/zones.png" />
+                <img src="/images/postnet/zones.jpg" />
                 <figcaption>Locations positioned in areas with low competition, but with a large number of people
                 </figcaption>
             </figure>
diff --git a/en/projects.html b/en/projects.html
index 7af4fe4..99769b5 100644
--- a/en/projects.html
+++ b/en/projects.html
@@ -31,7 +31,7 @@
     <div class="fullpage">
         <div class="section projects">
             <a class="project-container" href="/en/postnet.html">
-                <img src="/images/postnet/cover.png" alt="" srcset="">
+                <img src="/images/postnet/cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Postnet<div class="project-arrow"></div></span>
                 </div>
@@ -39,7 +39,7 @@
                     of Moscow automatic post office chain</div>
             </a>
             <a class="project-container" href="/en/emergency.html">
-                <img src="/images/emergency/cover.png" alt="" srcset="">
+                <img src="/images/emergency/cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Heat emergency<div class="project-arrow">
                         </div></span>
@@ -50,7 +50,7 @@
         </div>
         <!-- <div class="section projects">
             <a class="project-container" href="/en/city-modelling.html">
-                <img src="/images/city/city-cover.png" alt="" srcset="">
+                <img src="/images/city/city-cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Cit<wbr>y modelling<div class="project-arrow">
                         </div></span>
diff --git a/images/city/add.jpg b/images/city/add.jpg
new file mode 100644
index 0000000..e1aa4dc
Binary files /dev/null and b/images/city/add.jpg differ
diff --git a/images/city/add.png b/images/city/add.png
deleted file mode 100644
index fa05990..0000000
Binary files a/images/city/add.png and /dev/null differ
diff --git a/images/city/city-cover.jpg b/images/city/city-cover.jpg
new file mode 100644
index 0000000..c237c4b
Binary files /dev/null and b/images/city/city-cover.jpg differ
diff --git a/images/city/city-cover.png b/images/city/city-cover.png
deleted file mode 100644
index 6d23f44..0000000
Binary files a/images/city/city-cover.png and /dev/null differ
diff --git a/images/city/clinics.jpg b/images/city/clinics.jpg
new file mode 100644
index 0000000..e067b05
Binary files /dev/null and b/images/city/clinics.jpg differ
diff --git a/images/city/clinics.png b/images/city/clinics.png
deleted file mode 100644
index 0ffe37c..0000000
Binary files a/images/city/clinics.png and /dev/null differ
diff --git a/images/city/diagram.jpg b/images/city/diagram.jpg
new file mode 100644
index 0000000..12a2b7e
Binary files /dev/null and b/images/city/diagram.jpg differ
diff --git a/images/city/diagram.png b/images/city/diagram.png
deleted file mode 100644
index 0553f0e..0000000
Binary files a/images/city/diagram.png and /dev/null differ
diff --git a/images/city/hex.jpg b/images/city/hex.jpg
new file mode 100644
index 0000000..8912ca2
Binary files /dev/null and b/images/city/hex.jpg differ
diff --git a/images/city/hex.png b/images/city/hex.png
deleted file mode 100644
index 3f519bd..0000000
Binary files a/images/city/hex.png and /dev/null differ
diff --git a/images/city/history.jpg b/images/city/history.jpg
new file mode 100644
index 0000000..4487c9a
Binary files /dev/null and b/images/city/history.jpg differ
diff --git a/images/city/history.png b/images/city/history.png
deleted file mode 100644
index ec2afb5..0000000
Binary files a/images/city/history.png and /dev/null differ
diff --git a/images/city/interface.jpg b/images/city/interface.jpg
new file mode 100644
index 0000000..a78bc23
Binary files /dev/null and b/images/city/interface.jpg differ
diff --git a/images/city/interface.png b/images/city/interface.png
deleted file mode 100644
index 9fdfbb9..0000000
Binary files a/images/city/interface.png and /dev/null differ
diff --git a/images/city/libraries.jpg b/images/city/libraries.jpg
new file mode 100644
index 0000000..b24fb65
Binary files /dev/null and b/images/city/libraries.jpg differ
diff --git a/images/city/libraries.png b/images/city/libraries.png
deleted file mode 100644
index c7fbbba..0000000
Binary files a/images/city/libraries.png and /dev/null differ
diff --git a/images/city/new-house.jpg b/images/city/new-house.jpg
new file mode 100644
index 0000000..70a2e54
Binary files /dev/null and b/images/city/new-house.jpg differ
diff --git a/images/city/new-house.png b/images/city/new-house.png
deleted file mode 100644
index 9520011..0000000
Binary files a/images/city/new-house.png and /dev/null differ
diff --git a/images/city/pools.jpg b/images/city/pools.jpg
new file mode 100644
index 0000000..a7abc4f
Binary files /dev/null and b/images/city/pools.jpg differ
diff --git a/images/city/pools.png b/images/city/pools.png
deleted file mode 100644
index ad81e11..0000000
Binary files a/images/city/pools.png and /dev/null differ
diff --git a/images/city/shap.jpg b/images/city/shap.jpg
new file mode 100644
index 0000000..0e5a630
Binary files /dev/null and b/images/city/shap.jpg differ
diff --git a/images/city/shap.png b/images/city/shap.png
deleted file mode 100644
index ca3dea0..0000000
Binary files a/images/city/shap.png and /dev/null differ
diff --git a/images/city/square.jpg b/images/city/square.jpg
new file mode 100644
index 0000000..1205d75
Binary files /dev/null and b/images/city/square.jpg differ
diff --git a/images/city/square.png b/images/city/square.png
deleted file mode 100644
index f05185f..0000000
Binary files a/images/city/square.png and /dev/null differ
diff --git a/images/city/sufficiency-new.jpg b/images/city/sufficiency-new.jpg
new file mode 100644
index 0000000..ccbb51a
Binary files /dev/null and b/images/city/sufficiency-new.jpg differ
diff --git a/images/city/sufficiency-new.png b/images/city/sufficiency-new.png
deleted file mode 100644
index d97f8e1..0000000
Binary files a/images/city/sufficiency-new.png and /dev/null differ
diff --git a/images/city/sufficiency.jpg b/images/city/sufficiency.jpg
new file mode 100644
index 0000000..56c8126
Binary files /dev/null and b/images/city/sufficiency.jpg differ
diff --git a/images/city/sufficiency.png b/images/city/sufficiency.png
deleted file mode 100644
index c77d3e4..0000000
Binary files a/images/city/sufficiency.png and /dev/null differ
diff --git a/images/city/update.jpg b/images/city/update.jpg
new file mode 100644
index 0000000..f9b0062
Binary files /dev/null and b/images/city/update.jpg differ
diff --git a/images/city/update.png b/images/city/update.png
deleted file mode 100644
index 4174f42..0000000
Binary files a/images/city/update.png and /dev/null differ
diff --git a/images/emergency/cover.jpg b/images/emergency/cover.jpg
new file mode 100644
index 0000000..6e4e4d5
Binary files /dev/null and b/images/emergency/cover.jpg differ
diff --git a/images/emergency/cover.png b/images/emergency/cover.png
deleted file mode 100644
index 0538030..0000000
Binary files a/images/emergency/cover.png and /dev/null differ
diff --git a/images/emergency/import.jpg b/images/emergency/import.jpg
new file mode 100644
index 0000000..7aa3dd1
Binary files /dev/null and b/images/emergency/import.jpg differ
diff --git a/images/emergency/import.png b/images/emergency/import.png
deleted file mode 100644
index 4572d38..0000000
Binary files a/images/emergency/import.png and /dev/null differ
diff --git a/images/emergency/shap.jpg b/images/emergency/shap.jpg
new file mode 100644
index 0000000..b59ac73
Binary files /dev/null and b/images/emergency/shap.jpg differ
diff --git a/images/emergency/shap.png b/images/emergency/shap.png
deleted file mode 100644
index 12cba50..0000000
Binary files a/images/emergency/shap.png and /dev/null differ
diff --git a/images/emergency/sim.jpg b/images/emergency/sim.jpg
new file mode 100644
index 0000000..319a6f2
Binary files /dev/null and b/images/emergency/sim.jpg differ
diff --git a/images/emergency/sim.png b/images/emergency/sim.png
deleted file mode 100644
index d11c9bd..0000000
Binary files a/images/emergency/sim.png and /dev/null differ
diff --git a/images/postnet/cover.jpg b/images/postnet/cover.jpg
new file mode 100644
index 0000000..5c5fc11
Binary files /dev/null and b/images/postnet/cover.jpg differ
diff --git a/images/postnet/diagram.jpg b/images/postnet/diagram.jpg
new file mode 100644
index 0000000..bfdeb0d
Binary files /dev/null and b/images/postnet/diagram.jpg differ
diff --git a/images/postnet/konkovo.jpg b/images/postnet/konkovo.jpg
new file mode 100644
index 0000000..68073fb
Binary files /dev/null and b/images/postnet/konkovo.jpg differ
diff --git a/images/postnet/location.jpg b/images/postnet/location.jpg
new file mode 100644
index 0000000..8dbbd24
Binary files /dev/null and b/images/postnet/location.jpg differ
diff --git a/images/postnet/zones.jpg b/images/postnet/zones.jpg
new file mode 100644
index 0000000..c6509a8
Binary files /dev/null and b/images/postnet/zones.jpg differ
diff --git a/images/projects/agglom.jpg b/images/projects/agglom.jpg
deleted file mode 100644
index 1e5c597..0000000
Binary files a/images/projects/agglom.jpg and /dev/null differ
diff --git a/images/projects/arial.jpeg b/images/projects/arial.jpeg
deleted file mode 100644
index be7cccf..0000000
Binary files a/images/projects/arial.jpeg and /dev/null differ
diff --git a/images/projects/greenpeace.jpg b/images/projects/greenpeace.jpg
deleted file mode 100644
index 015caf9..0000000
Binary files a/images/projects/greenpeace.jpg and /dev/null differ
diff --git a/images/projects/gulag.jpg b/images/projects/gulag.jpg
deleted file mode 100644
index e698d2e..0000000
Binary files a/images/projects/gulag.jpg and /dev/null differ
diff --git a/images/projects/magistral.jpg b/images/projects/magistral.jpg
deleted file mode 100644
index 3f99b0e..0000000
Binary files a/images/projects/magistral.jpg and /dev/null differ
diff --git a/images/projects/mapsme.jpg b/images/projects/mapsme.jpg
deleted file mode 100644
index 1d98698..0000000
Binary files a/images/projects/mapsme.jpg and /dev/null differ
diff --git a/images/projects/thumb.agglom.jpg b/images/projects/thumb.agglom.jpg
deleted file mode 100644
index 551b3a4..0000000
Binary files a/images/projects/thumb.agglom.jpg and /dev/null differ
diff --git a/images/projects/thumb.arial.jpeg b/images/projects/thumb.arial.jpeg
deleted file mode 100644
index ea9b42a..0000000
Binary files a/images/projects/thumb.arial.jpeg and /dev/null differ
diff --git a/images/projects/thumb.gulag.jpg b/images/projects/thumb.gulag.jpg
deleted file mode 100644
index b2b245a..0000000
Binary files a/images/projects/thumb.gulag.jpg and /dev/null differ
diff --git a/images/projects/thumb.magistral.jpg b/images/projects/thumb.magistral.jpg
deleted file mode 100644
index 7b3c43e..0000000
Binary files a/images/projects/thumb.magistral.jpg and /dev/null differ
diff --git a/images/projects/thumb.mapsme.jpg b/images/projects/thumb.mapsme.jpg
deleted file mode 100644
index b748fec..0000000
Binary files a/images/projects/thumb.mapsme.jpg and /dev/null differ
diff --git a/images/projects/thumb.muf.jpg b/images/projects/thumb.muf.jpg
deleted file mode 100644
index 7be54ab..0000000
Binary files a/images/projects/thumb.muf.jpg and /dev/null differ
diff --git a/images/projects/thumb.velobike.jpg b/images/projects/thumb.velobike.jpg
deleted file mode 100644
index 2464c18..0000000
Binary files a/images/projects/thumb.velobike.jpg and /dev/null differ
diff --git a/images/projects/thumb.ws.jpg b/images/projects/thumb.ws.jpg
deleted file mode 100644
index fa74781..0000000
Binary files a/images/projects/thumb.ws.jpg and /dev/null differ
diff --git a/images/projects/velobike.jpg b/images/projects/velobike.jpg
deleted file mode 100644
index b658a34..0000000
Binary files a/images/projects/velobike.jpg and /dev/null differ
diff --git a/images/projects/ws.jpg b/images/projects/ws.jpg
deleted file mode 100644
index 73cb862..0000000
Binary files a/images/projects/ws.jpg and /dev/null differ
diff --git a/images/technologies/galton.jpg b/images/technologies/galton.jpg
deleted file mode 100644
index 4463eb7..0000000
Binary files a/images/technologies/galton.jpg and /dev/null differ
diff --git a/images/technologies/martin.jpg b/images/technologies/martin.jpg
deleted file mode 100644
index f77d418..0000000
Binary files a/images/technologies/martin.jpg and /dev/null differ
diff --git a/images/technologies/react.jpg b/images/technologies/react.jpg
deleted file mode 100644
index 13e9e4d..0000000
Binary files a/images/technologies/react.jpg and /dev/null differ
diff --git a/images/technologies/thumb.galton.jpg b/images/technologies/thumb.galton.jpg
deleted file mode 100644
index 792b313..0000000
Binary files a/images/technologies/thumb.galton.jpg and /dev/null differ
diff --git a/images/technologies/thumb.martin.jpg b/images/technologies/thumb.martin.jpg
deleted file mode 100644
index daf62b7..0000000
Binary files a/images/technologies/thumb.martin.jpg and /dev/null differ
diff --git a/images/technologies/thumb.react.jpg b/images/technologies/thumb.react.jpg
deleted file mode 100644
index 9040dc0..0000000
Binary files a/images/technologies/thumb.react.jpg and /dev/null differ
diff --git a/postnet.html b/postnet.html
index c8a61c7..0c393d2 100644
--- a/postnet.html
+++ b/postnet.html
@@ -41,7 +41,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/postnet/cover.png" />
+                <img src="images/postnet/cover.jpg" />
                 <figcaption>Интерфейс системы</figcaption>
             </figure>
         </div>
@@ -58,7 +58,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/postnet/location.png" />
+                <img src="images/postnet/location.jpg" />
                 <figcaption>Прогнозное количество заказов в локации на месяц – 257</figcaption>
             </figure>
         </div>
@@ -76,7 +76,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/postnet/diagram.png" />
+                <img src="images/postnet/diagram.jpg" />
                 <figcaption>Интерпретация прогноза – визуализация вклада различных факторов в прогноз количества заказов
                 </figcaption>
             </figure>
@@ -97,7 +97,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/postnet/konkovo.png" />
+                <img src="images/postnet/konkovo.jpg" />
                 <figcaption>Жилые дома и ритейл района Коньково, имеющие прогноз месячного количества заказов более 200
                 </figcaption>
             </figure>
@@ -117,7 +117,7 @@
         </div>
         <div class="section">
             <figure>
-                <img src="images/postnet/zones.png" />
+                <img src="images/postnet/zones.jpg" />
                 <figcaption>Локации, расположенные на территориях с низкой конкуренцией, но с большим количеством людей
                 </figcaption>
             </figure>
diff --git a/projects.html b/projects.html
index 3534a46..7fcd5d0 100644
--- a/projects.html
+++ b/projects.html
@@ -32,7 +32,7 @@
     <div class="fullpage">
         <div class="section projects">
             <a class="project-container" href="postnet.html">
-                <img src="./images/postnet/cover.png" alt="" srcset="">
+                <img src="./images/postnet/cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Postnet<div class="project-arrow"></div></span>
                 </div>
@@ -40,7 +40,7 @@
                     Московский постамат</div>
             </a>
             <a class="project-container" href="emergency.html">
-                <img src="./images/emergency/cover.png" alt="" srcset="">
+                <img src="./images/emergency/cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Heat emergency<div class="project-arrow">
                         </div></span>
@@ -51,7 +51,7 @@
         </div>
         <!-- <div class="section projects">
             <a class="project-container" href="city-modelling.html">
-                <img src="./images/city/city-cover.png" alt="" srcset="">
+                <img src="./images/city/city-cover.jpg" alt="" srcset="">
                 <div class="project-title">
                     <span>Cit<wbr>y modelling<div class="project-arrow">
                         </div></span>