http://gallery.mudpuddle.co.nz/d/14852-1/0414.jpg
I basically made a geometric mesh behind the camera, shined a light on a surface, and then had several shadow only lamps with different shadow colors make shadows with the mesh.
The result is an interesting work with geometric shadows. Added the painted effect in PSP 7 because I think it makes it a little more interesting.
Let it to CD to make abstract art with new features. You always have these off the wall ideas for your renders… I mean it in a flattering way of course.