sorta looks like michael jackson O_O but good nonetheless

Face is nice. The thing is, you put a lighting effect on the face, but none on the shirt. There is no depth. Put some shadow under the armpits, and maybe some under his chest if you want the guy to have a big chest.

Same with the hair, give it some contrast...Maybe think of a more patterned background as well. Like a checker board, or poka-dots. That background isnt workin for me :p

Good work on the face though man..keep it up