For the kick you might want to make it so the upper body moves with it so it looks more like a kick, not a long step.
Also, on the appearing try to make the guy run instead of just standing and teleporting. Try to add some motion to the appearing and disappearing.

needs more movement.... badly!

all the joints are really stiff, try to move every joint for every slide. For the kick, raise the arms alil like when you are surprised, and that way it will look like the stick guy has at least some care.

Good job since you are a beginner.