that's some afro. i keep seeing that guy around. i assume he's from some show i've never heard of.
in the first one it's a bit stiff. his hips don't turn much when he throws that punch / delivers that slap. it's almost like the viewer is in live theater where the actors face the audience's direction to make movements more clear and visible. animation ofc isn't live theater, but you get what i mean.
looks like you were employing the blur effect during the slap / punch, and some perspective, too. (btw, i can't really tell which it's supposed to be. if it's a punch, it'd be way more effective to bring the fist back before throwing it. the rest of his torso follows through that movement and we should see the hips twist as well, even if just a little. same principle for kicks.) if i'm correct, i think that bringing it back would be called anticipation. easing might help the believability of it, too. idk what to say about perspective, though.
it's kinda hard for me to tell what's going on in the second one, tbh. it's a li'l hard to follow. looks to me like the guy's excecuting a kick from the back after spinning around.