In my humble opinion, the only thing that spoil the animation, is that strange sliding move of the leg, like he is standing on a perfect ice. You should avoid it at all cost, I know, it's one of the common advices from traditional animation school, unlees you are doing a comic cartoon.
@NoeleGrosie Thank you! And like Manupix said, 12 frames.
@Manupix You're right, I wanted his lower body to have some movement but I couldn't think of a better solution. Thank you for your feedback tho!
Didn't really give it much thought when animating this but now that's been pointed out I can see how big of an issue it is. I'll be sure not to use easy cop-outs next time I'm making something like this. Thanks a bunch for your input.