Nicely done, and cute

I feel it's better off if you put this in the art section as a pure gif loop makes more sense there, btw.

I think it's okay. There isn't much weight as everything's linear. Timing is important in animating, and it's also part of how you define weight or force. He's also jumping up without crouching down at all. Like try jumping or walking at all, and there needs to be some downwards motion before you can go up.