the upper body is fine... the right foot looked like it was sliding instead of stomping its foot.
i like it... the animation is actually rly good, except for the little choppy-ness when he steps eith his left foot (maybe add one more frame or make the movement of head and arm less extreme)...
pixelwork itself could definitely need some clean up tho... also white bg isnt needed (see submission rules)
Nice! Very good art