The right eyebrow overlaps the head and that looks weird, the eye outlines aren't the same thickness, the right pupil has a flat top, the left eye has a white outline when overlapping the head outline, looks a little strange that the body is expanding as it fades away, the teeth just seem a little too flat, and the eyebrows just don't quite match. Other than that, looks pretty good.
Edit: also the gradient doesn't match up perfectly when the black outline ends, personally I don't really like that.
Last edited by DrunkenMonkey; Mar 18, 2012 at 11:33 AM.