I think you're doing a lot better with your shading and you have a better grasp on 3d. I'm very impressed by the barrel home. I have difficulty shading, myself.
I think you really need to learn human anatomy, though. I realize that your creatures aren't humans, but it really does help to understand where things like muscles go. As my mentor, Tom Alvarez said, "you have to learn the rules before you can warp or break them."
Great stuff, though. You HAVE improved.
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