Not so good.
Definitely needs a lot more work.
First off, there's not really a plot to it at all, which is something rather important for a claymation movie to have. Just kind of a guy walking around and seeing something.
Second, a preloader will always make the animation seem better.
Thirdly, you had two white bars on either side of the animation which were really distracting. Make shur that your dimensions match your video.
The one thing that was done well was that the animation moved smoothly and wasn't choppy.
Keep working on it, though. It looks like you have potential.