Ok, ill rate 2 things, the whole anim, and the tremor, ok?
Lets start with the Tremor first:
i think it moved up then down! lol
id (9.9999999999%) always do it down! never up, and it shud go really big, then small, to show a good, strong effeect...and, so thats that!
Now for the whole anim (long part):
Ok, ima gonna start with bad: There was no power up to the jump, u cant just do a jump like that without (at-least) a small power up! lol, just try it, no power up, and try to jump, ull get about 1 cm, (if ur lucky!) lol
and well, the easing....Nothing can go super fast right at the beginning of a movement, it has to barely move, then starrt gainin speed, then go super fast (or as fast as u want) then slowly, depending on the speed, come to an end.
hope that made sense so far....
and finally, physics, im not soo gd at this, so ill try my best, when he came down, he barely chaged speed, if he is in space (i dont think he is) the he would do that, but since he on Earth (i think lol) he shud gain speed, fast, fast, CRASH! lol, thats about it, i think....
Hope this helped!
Rabstar
Edit: ooops, forgot the good!
lol my bad, ill add that now!
I liked it, it seemed funky, lol
and nice stick, also, nice background....