I love the anatomy and weird palette but I had a bit of a hard time making out the face; at first I thought they eyebrows were the eyes, and then I thought the shadows under the eyes were the eyes, and now I see it's the tiny points that are the eyes (I think!). Try looking at it all of these ways and I think you'll see what I mean. It could maybe use some clarification around the eyes, like more of an outline, or a lighter color for the whites of the eyes, etc.
OH man, that is awesome. I think that thing could probably yank a Snagret right out of the ground! Very nice work, I am especially fond of its expression.
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