Wauw!
I'm not particularly fond of the hair (the hair parts go to deep)and it looks like you forgot to do the eyes, but besides that it looks great.
I find it really amazing how you make it look so three dimensional, it almost looks wax sculpture esque. He could jump out of the picture right now :P
I also like the lighting on the rocks in the lower right corner, it's a small touch, but I like it a lot.
