Timing / Spacing

The movement is a bit too stiff for the realistic ball bounce, it needs a bit more of a squash and stretch. I think the movement and bounce for the cartoon physics ball is more accurate that the realistic ball because the movement looks more fluid.

I like the movement, because it shows a clear understanding of a heavy and a light ball falling. I think the bounce of the light ball is too high. I should have not made it bounce as high as it did but apart from that I think it looks ok.