You have no right of speaking!
Unless you can make an animation that has as much effort, skill and imagination in it as actual Jazz music, and is even half as fun to watch, THEN you can critique Jazz music.
I give you one star for the animation, and an extra star because I like the song! :)
See, if you'd made a funny dancing singing guy that gets shot in the face it'd be a totally hilarious short, but this isn't even animation!
Practice and try again!