Hey man, loving the animations so far!
The only thing i would advice you to do, is work out the skin colours, (colours in general) the contrast between them is so subtle, that i couldnt tell a thing if it werent for the fact that its animated, and that the black pops it up a notch.
Animation wise, its really nice, but try to up the contrast a bit, and play with it on the animation.
Cheers, keep it up!