nice work! Love the perspective view, the composition is nice!
Thanks for the sideview, that's good to have to analyze the clip.
It's overall pretty good, just a few little sections that need tweaking. From x13 to 14 the ball jumps up pretty high and the tail shoots down. That's a big change over one frame. I'd give it one more frame where the ball is stretched out reaching forward but not off the ground.
Another quick change is from x27 to 28. It'd be good to see a reversal in the tail, where it is how it is on x27, but then as it goes down you reverse the curvature and when it drags behind again during the jump it's back to how it is on x28. Same on x36, that tail end should point up.
Watch the spacing for your forward movement (in z?). Around x19 it almost comes to a halt and then lunges forward. Keep it smoother.
Watch that the ball doesn't start to squash before it hits the ground like on x26.
The lunge forward from x35 to 49 is a bit too far. It might just be a matter of retiming though, where you'd have a tiny bit more hang time and a tiny bit of a sharper drop. Right now after a few frames of the last bounce up it starts to feel even. Funny enough it's not as pronounced in the perspective view.
On that last landing, on x49, which is the first contact frame, you already have it squashed, but since it's the landing and finish, you could try to have it stretched out there and squashed one frame later for more of a controlled compression (the ball is trying to slow down; it's not bouncing up again).
On x50 the tail should continue the overlap and no stick in the same pose.
Seems like a lot but it's just little things here and there. Looking good! Keep going!