As evidenced by the comic this is based on, you are really good at drawing (well, drawing realistically-proportioned anime-esque characters and such, your shading's a little flat), but animation, not so much. This feels very stiff.
I recommend learning the 12 Principles of Animation (pay attention to principles 1, 4, 5, 6, 7, 9, and 10)
Relevant video: https://www.youtube.com/watch?v=uDqjIdI4bF4
I'm also gonna remove points for not having sound.