Well. that face.. its...
Very creepy looking. You may want to find a more appealing angle for it, or somehow model the face better. As it is now, it just has such a lifeless look and just isn't appealing at all.
The rest seems good though. I think you are good at the modeling, but you seem to be neglecting the appeal factor, which is far more important than accuracy in design.
Good work, sorry if this is too low a rating for your liking.