well...
Like the previous guy said, it was a good concept. The end is far too abrupt though, and the way your characters walk is far beyond "skitchy" in my opinion. I know from experience that animating walking is tough with clay, but if you get it right, it'd be so much worth the effort.
Also, I'd look to alter the subtitles to make them look a little more professional.
Like I said, good idea and all (I am half-working on a vaguely similar clayproject myself) but it could definately do with some tweaks.
I like it though, I'll keep an eye out for you.