The face looks very wierd... The eyes don't fit on the face... they look like 2d cut outs on a 3d face. The chin is spikish... eyebrows are too heavy... I know you were trying to emphasize them, but that is like tame overgrown pubic hair... Nose looks a little wierd, shouldn't be so V-shaped at the bottom. The lobe of the air looks like it was bitten off.
(Holyfield anyone?)