[Clipart] Where can I share my portraits?

[ms at ms.lt]

I'm drawing lots of portraits with oil pastels, for example:
http://www.gospelmath.com/upload/DoYouRecognizeJesusNew.png
http://www.gospelmath.com/Gospel/ValuesSuperHeroes

How and where might I share them in the Public Domain, copyright-free?  
  I understand that Open Clipart only accepts SVG drawings.

I think they could be used for cartoons, collages and other projects.   
I would like to draw "packages" of people from history, current  
events, expressing various emotions, poses, especially, if there was  
interest and support.

Andrius

Andrius Kulikauskas
http://www.selflearners.net
http://www.gospelmath.com
ms at ms.lt
+1 (773) 306-3807
Chicago, Illinois