Another 2D task we were asked to do, was to animate a hand turn. First we were supposed to roughly animate our own hand turning and then after that, clean it up and make it a cartoon hand with three fingers, similar to Mickey Mouse.

Below you can see my sketchy hand:

And here you can see my cleaned up attempt:

I think the animation is OK. However, I do think the line consistency changes a little on the arm/wrist area.