diff --git a/src/_includes/layouts/base.njk b/src/_includes/layouts/base.njk
index c4ec1c2..50e0451 100644
--- a/src/_includes/layouts/base.njk
+++ b/src/_includes/layouts/base.njk
@@ -23,12 +23,12 @@
     <meta property="og:title" content="{{ site.title }} - {{ title }}">
     <meta property="og:description" content="{{ summary }}">
     <meta property="og:site_name" content="{{ site.title }} - {{ title }}">
-    <meta property="og:image" content="{{ site.url }}/img/og.jpg">
+    <meta property="og:image" content="{{ site.url }}/img/og.png">
     <meta property="og:updated_time" content="{{ site.buildTime }}">
     <meta name="twitter:card" content="summary_large_image">
     <meta name="twitter:title" content="{{ site.title }} - {{ title }}">
     <meta name="twitter:description" content="{{ summary }}">
-    <meta name="twitter:image" content="{{ site.url }}/img/og.jpg">
+    <meta name="twitter:image" content="{{ site.url }}/img/og.png">
     <link rel="shortcut icon" href="favicon.ico">
     <link rel="icon" type="image/png" href="favicon.png">
     <link rel="stylesheet" href="{{ '/css/main.css' | rev }}">
diff --git a/src/de/index.html b/src/de/index.html
index 8d776f0..a9470ee 100644
--- a/src/de/index.html
+++ b/src/de/index.html
@@ -37,7 +37,7 @@ eleventyNavigation:
 <div class="row py-5">
     <div class="col-12 col-lg-4 mb-4 mb-lg-0 fill-col-inner order-lg-1">
         <div class="me-profile">
-            <img src="/img/samuel.jpg" alt="Samuel Philipp">
+            <img src="/img/samuel-1024.jpg" alt="Samuel Philipp">
         </div>
     </div>
     <div class="col-12 col-lg-8">
diff --git a/src/en/index.html b/src/en/index.html
index 7b83f5c..54811a7 100644
--- a/src/en/index.html
+++ b/src/en/index.html
@@ -37,7 +37,7 @@ eleventyNavigation:
 <div class="row py-5">
     <div class="col-12 col-lg-4 mb-4 mb-lg-0 fill-col-inner order-lg-1">
         <div class="me-profile">
-            <img src="/img/samuel.jpg" alt="Samuel Philipp">
+            <img src="/img/samuel-1024.jpg" alt="Samuel Philipp">
         </div>
     </div>
     <div class="col-12 col-lg-8">
diff --git a/src/img/bg.jpg b/src/img/bg.jpg
index c1f4e21..b720e8f 100644
Binary files a/src/img/bg.jpg and b/src/img/bg.jpg differ
diff --git a/src/img/bgl.jpg b/src/img/bgl.jpg
index 9976806..566218e 100644
Binary files a/src/img/bgl.jpg and b/src/img/bgl.jpg differ
diff --git a/src/img/og.jpg b/src/img/og.jpg
deleted file mode 100644
index 164c54f..0000000
Binary files a/src/img/og.jpg and /dev/null differ
diff --git a/src/img/og.png b/src/img/og.png
new file mode 100644
index 0000000..ce609e1
Binary files /dev/null and b/src/img/og.png differ
diff --git a/src/img/samuel-1024.jpg b/src/img/samuel-1024.jpg
new file mode 100644
index 0000000..8078751
Binary files /dev/null and b/src/img/samuel-1024.jpg differ
diff --git a/src/img/samuel.jpg b/src/img/samuel.jpg
deleted file mode 100644
index 4162d6c..0000000
Binary files a/src/img/samuel.jpg and /dev/null differ