I have to agree with Arran on the proportions.
The bottom of the face seems too Thick/Chubby/broad, and not in a Puppy fat kinda way, that you would expect to see on a kid, but more of a Mature Fat guy way!.....If you get what i mean.
The skin texture looks good, though as mentioned, it need a bit more variation.
The eyes seem pretty solid, as does the modeling. Except maybe the eyes could be slightly more glossy.
The hair is Brill... no crits from me on that
Very nice work!
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