Cool stuff.
You've definitely got the movement of the objects running smooth, that is by far the best claymation I've seen in a while, but there's one or two bits that I think let it down.
At one point, right towards the end, the camera zooms out. Now, I don't know if this is intentional or not, but it seems to be very jumpy just on that last transition. The reason I don't know if it's intentional is because the animation on screen carries on as smooth as the rest of the video, and perhaps the jumpiness is used for effect.
The second thing is sometimes the lighting wasn't exactly ideal. I've tried my hand at claymation before, and I know that lighting is probably a lot more important and difficult than most people give it credit for.
But still, despite those little niggles, it was still a very good showcase of claymation. It's a bit like a clay version of one of those random fbf flashes that people sometimes do. Random, but still very enjoyable.