ok, i'll share my opinion...
the background is a simple photo, so cant rly comment on that. the shadow is too sharp, at least use a little blur on it, wud give it a much better impression. some of the shading on sasuke is very odd, compare the face and the hair --> the light hits him from what seems to be completely different angels. also, the shape of the shadows on his bangs is strange. he doesnt have lips and his chin is not defined.
so, its not bad, but its not particularly good either. it could easily be greatly improved in a matter of minutes, whether to do it or not is up to you!
you realize this is a texture photo...? unless im mistaken, which i dont think i am...
