I love FbF work
This was no exception. Though short, it was very fast paced and well thought out. The visuals were great, and the animation was fluent. Really all you need with the frame by frame work.
The song was nice, you mixed it into the animation very well. Anything by Gorrilaz is good for animating though.
Overall, great animation. Pity about the shortness of them, but I guess thats all most people can get when working with the tedious varietys of FbF.
Non-The-Less, good work.