Here's a article from Max over in GA you might like concerning painting:
http://www.flytyer.com/index.php?option=com_content&task=view&id=49&Itemi d=0

I have experimented with Delta Ceramacoat Varnish and paints. I really like the finished look and durability.
Sorry about the poor phone pick, but here is an example of a foam body popper before the legs are added.


Here is another foam Crease fly painted with prismacolor markers then varnished with Delta Ceramacoat.
Front:

Side: