I didn't get it.
Was this supposed to be funny? If it was I didn't get the joke.
I liked the backround, that was pretty clever.
The sound was the best part, your music choices were good.
It was too short, it needed a story of some sort.
Also it needs to be smoother, this was a little choppy...
The graphics weren't good, I suggest you draw your characters, sprites just aren't working for you...
Good luck on your next animation though :)