Wow!
Its been awhile since I've watched something this good!
I'll give it okay for the sound, since all you used was the music. It was cool though...where did you get it?
Interactivity is self explanatory.
Perhaps an injection of satirical humour would be cool, since we've more or less seen violence as the driving point in quite a few (albeit some) animations.
In closing:
Keep up the good work good citizen of creativity!