diff --git a/prosopopee/prosopopee.py b/prosopopee/prosopopee.py
index 3e5481d..2cce4ec 100644
--- a/prosopopee/prosopopee.py
+++ b/prosopopee/prosopopee.py
@@ -99,7 +99,7 @@ class Video(object):
         return ""
 
     def generate_thumbnail(self, gm_geometry):
-        thumbnail_name = ".".join(self.name.split(".")[:-1]) + "-%s.png" % gm_geometry
+        thumbnail_name = ".".join(self.name.split(".")[:-1]) + "-%s.jpg" % gm_geometry
 
         source, target = self.base_dir.joinpath(self.name), self.target_dir.joinpath(thumbnail_name)
 
diff --git a/prosopopee/themes/exposure/templates/gallery-index.html b/prosopopee/themes/exposure/templates/gallery-index.html
index 2d87cf6..f221ae7 100644
--- a/prosopopee/themes/exposure/templates/gallery-index.html
+++ b/prosopopee/themes/exposure/templates/gallery-index.html
@@ -10,6 +10,7 @@
 
         <!--Let browser know website is optimized for mobile-->
         <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
+        <meta name="description" content="{{ gallery.description }}" />
         <title>{{ gallery.title }} · {{ settings.title }}</title>
     </head>
 
diff --git a/prosopopee/themes/exposure/templates/sections/author.html b/prosopopee/themes/exposure/templates/sections/author.html
index 3676d4c..e38e196 100644
--- a/prosopopee/themes/exposure/templates/sections/author.html
+++ b/prosopopee/themes/exposure/templates/sections/author.html
@@ -1,7 +1,7 @@
 {% set image = Image(section.image) %}
 {{ image.copy() }}
 <div class="author-meta">
-    <img src={{ image.generate_thumbnail("200x200") }} alt="" class="circle">
+    <img src={{ image.generate_thumbnail("80x80") }} alt="" class="circle">
     <div>
         <span class=author-info>Story by
         <h4>{{ section.name }}</h4>
diff --git a/prosopopee/themes/exposure/templates/sections/full-picture.html b/prosopopee/themes/exposure/templates/sections/full-picture.html
index dd5331e..dfb5467 100644
--- a/prosopopee/themes/exposure/templates/sections/full-picture.html
+++ b/prosopopee/themes/exposure/templates/sections/full-picture.html
@@ -32,7 +32,7 @@
     {% set image = Image(section.image) %}
     {{ image.copy() }}
 
-    <section class="full-picture" style="background: url('{{ image }}') no-repeat fixed center top / cover, url('{{ image.generate_thumbnail("x450") }}') no-repeat fixed center top / cover transparent;">
+    <section class="full-picture" style="background: url('{{ image.generate_thumbnail("x2000") }}') no-repeat fixed center top / cover, url('{{ image.generate_thumbnail("x450") }}') no-repeat fixed center top / cover transparent;">
 
     {% if section.text %}
         <div class="picture-text">