Some sigs of mine

http://i214.photobucket.com/albums/c...batmancopy.png

http://i214.photobucket.com/albums/c...ez/batman2.png

http://i214.photobucket.com/albums/c...otballcopy.png

http://i214.photobucket.com/albums/c...z/kanye2-2.png

http://i214.photobucket.com/albums/c...fLightcopy.png

I like the third the best, however there seems to be A LOT going on. It's really really hard to concentrate on the render when there is so much going on. I think you should try to add more of a bG and get rid of some of the C4d's and what not in there that's making it so distracting. However aside form that it looks pretty nice.