I know it's a short and that you did it for fun, but it's really not something that's very good. I actually think that dot and/or stick animations can be very entertaining to watch. As practice, this is a good start, but as a submission it's not very good.
The animation was choppy and could be smoother. The biggest downer was the lack of detail in the background. It would have been nice to work on that and this submission would have been a lot better. Add some length and you actually have a pretty good piece.
I also noticed that some of the "damage" to the walls in the first scene went away after a few seconds. I believe that was probably an error. You did have some nice detail in the last scene where the lamp was swaying back and forth though.
Music was an alright choice and you did a good job on the sound effects.