hrm......hard to review this
this isn't easy to review, as there's not a whole lot there to talk about. I can see potential in it, but there are a few things that you could try that I think may make it better. First and fore most is the characters. I don't actually know what they look like of anything, but I can tell by the fact that they have hands that don't have arms, and simple circles for hands that its going to be somekind of "madness" based character designs. Please, the madness thing has been done to death. While madness was good for what it was, the thousands upon thousands of clones it has spawned usually aren't good. I'm not saying don't use it, but is you are going to use it make sure that you put a good amount of detail into the characters. From the hands, it doesn't look like you have (but as I haven't actually seen the characters themselves I'm basing what I'm saying on what I saw). Your backgrounds looked good, really good, so I'm guessing that you do have artistic capability.
well I guess what I'm saying is try and make sure that you character detail is at the same level that your backgrounds are.
lastly, animations with a strong storyline are way better than those without one. If you develop a great storyline then your animation will be much better for it.
good luck with your movie, I'll be waiting to see the finished product!