I got to admit its so very cute... But be very cautious about position (centering the image). What I believe is the most off center and the only thing that's to weird to let pass is the teeth in relation to the nose. It should be around dead center even if he had some weird lip movements... It should cover part of it not move it.
Still great work and I am being picky here while I can't even do that much XD I feel a bit bad, but my only good part is my eye for games and details. I hope this helps.
Yeah, looking at it now, I probably should've moved the nose more to the right, then everything would look more centered.
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