The face seems a bit strange when you consider the way the rest of the body looks, as well as the kneecaps and abs. Probably just the way they are defined, though the seem to be somewhat dislocated/disproportionate. The head should scoot over a bit to the left, and the neck should reach behind the face on the right side. Arms seem a bit noodley.
Outside of that good job.
And good job on the anti-alias, I use that trick too for Battle Network style mugshitz.