aight, so first since you’re practicing and whatnot, add a floor – pay attention to gravity/foot placement, without a floor you can’t do that

as mentioned thought, pay attention to foot placement, and movement/poses in general

for example, I just clicked a random spot in the video:

none of those poses look natural (holding the blades)

when animating, put yourself into your characters position – actually act out the movement yourself, even if just mentally while sitting, focus on what you/others would look like IRL and translate that onto the screen

lots of room for improvement, but the effect you mentioned was good, neat little thing

1) definitely need a floor

2) even though he floats, you shouldn’t just slide SP across with absolutely no limb movement at all, it looks like a statue sliding across the ground – lean forward / show him “pushing” his weight through the air

3) don’t just go from pose to pose (when he grabs the dude, frame1: hes standing there, frame2: he has him grabbed – what happened in between?)

4) the rapid punches, by their nature of being so fast, need an effect to look right, this is called “smearing” in animation terms, there are effects for it on the website actually: http://sticknodes.com/stickfigures/?wpfb_s=jojo+punch&search_field=all&time=all but they can be tricky to animate correctly – it takes practice

smearing: effects drawn as to show rapid movement that when viewed in animation are unnoticeable and look natural, but on a paused frame, well:

Lol @ joining aguy’s group to ask that

You can just animate effects. Like everyone else does-

Others just have blur or something but that isn’t even that good most of the time anyway.