Planning: I take reference from basketball, try to have stretch and squash not too heavy but in the proper place. And I pay attention to the ending follow-through that the ball has a slight pullback.

animation:
Feedback from George:
- The angle of the arc for each bounce can be smaller
- The rotation of the ball should be aligned vertically on the motion trail
- The pullback of the ball in the end should decrease the translation
Revised version: