Selfmade collage for userpages, based on various Public Domain images and own work.
<a href="//commons.wikimedia.org/wiki/User:Channel_R" title="User:Channel R">Channel R</a>
Own work by uploader and public domain images. The frame (flipped) and the jacket in the corner are from <a href="//commons.wikimedia.org/wiki/File:04849v.jpg" class="mw-redirect" title="File:04849v.jpg">Image:04849v.jpg</a>, the soldier: <a class="external autonumber" href="https://en.wikipedia.org/wiki/Image:Avhellis.JPG">[1]</a>, ballerina Anna Pavlova's legs: <a class="external autonumber" href="https://en.wikipedia.org/wiki/Image:Awakening_of_Flora_-Anna_Pavlova_-1900.JPG">[2]</a>. The nun with the keyboard is a collage/drawing made for me by a former colleague some 15 years ago. Background: <a href="//commons.wikimedia.org/wiki/File:Background_for_collage.png" title="File:Background for collage.png">Image:Background_for_collage.png</a>, and the background's grid: <a href="//commons.wikimedia.org/wiki/File:Muybridge-1.jpg" class="mw-redirect" title="File:Muybridge-1.jpg">Image:Muybridge-1.jpg</a>.  (Now if this isn't enough info to show that this image really is Public Domain, I don't know what is.)