I thinks you are doing great progress!
One thing though, I can see that you fixed the animation on his legs, so when his feet is behind, it gets darker and smaller, you just have to do the same when his feet is at the front xD Make it a brighter because of light exposure with brigther colors, and ajust a little the lineart to make it bigger, so the feet seems closer to the viewer.
KittenMaster's edit shows what I mean pretty well (and, of course, what he meant xD)!
Besides that, the arm's getting better. You could just move it all more, not just from the elbow down.
Keep up the good work!