Wow! You did a really great job with the animation in this piece. I love how it kind of tilts back and forth alongside the bounce.
Great call with adding another movement type so it not only jump up and down, but also slightly "roll" back and forth.
Also, awesome squash and stretch. The same stretch effect you have on frame 5 - accelerating with gravity just before hitting the ground. It is also good to use it when going up and going into the normal shape when slowing down while reaching the top. It could give it kinda spring energy and make it look more bouncy. Experimenting with putting the stretched ball on frame 7 only, or frames 7 and 8, or only 8 could give very different results.
The appearing and dissapearing shadow is also perfect.
Simply: great first post. Keep it up!
yah sure! thank you so much for the feedback :)