Terrible
The animation was very poor; extremely choppy, and the stick figures didn't even look like they were moving. The graphics were terrible too, being nothing more than a few lines and fills thrown poorly together.
The first major error is that the stick figures should be drawn with the paint brush tool so you can make it smoother and draw easier. Next, it doesn't look like you even used the Onion Skin tool. If you turn it on, you can see what was on the previous frame to make the animation smoother.
The background lacked everything; lighting, realism, and talent altogether. You may as well have left it out it was so bad.
The sound effects were chosen well, although the music was not. I'll give you 2 stars for the effort.