This was an emotional creation. I usually dislike visual metaphors but I like the way this one turned out.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Inside_my_head.jpg" title="File:Inside my head.jpg">Inside_my_head.jpg</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/people/34754790@N00">Andrew Mason</a> from London, UK</li>
<li>derivative work: -- <a href="//commons.wikimedia.org/wiki/User:Jtneill" title="User:Jtneill">Jtneill</a> - <small><a href="//commons.wikimedia.org/wiki/User_talk:Jtneill" title="User talk:Jtneill">Talk</a></small></li></ul>
CC BY 2.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:Inside_my_head.jpg" title="File:Inside my head.jpg">Inside_my_head.jpg</a></li></ul>