I gotta dissagree with noburo tho. If anything hes to short. But that is due to the big head wich is the style you were going for so nothing bad with that :p
I've been following the development of this piece for awhile now, and am really pleased with the final result. I really like the highlight on the knees for some reason.
My only issue is with the shirt: it's sort of hard to read in a few areas, mostly where his arms and shirt meet.
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Very nice palette!