The first 2 hops are actually from another exercise, and are a little more refined then the rest of it. I'm still figuring out how to work out beforehand the movement of things (a hopping ball is a little difficult since I can't just do it myself or easily find reference).
I think I might sketch out the movement on paper and spend some time thinking about it, then start over from scratch. Maybe do little storyboards or something. I think I'm starting to understand how idiotic it is to try animating something without completely understanding the underlying movement. Anyway, any comments/crits are welcome.