Well, it's a start.
This is a decent start, but I think it needs some more work. I realize that it's a preview, but even for a preview, it doesn't tell much about the series or really leave me very curious about it. It's a guy and a rooster, running and standing there... that's about it. Not much excitement there.
Also, the drawing styles changed dramatically from frame to frame, which threw me off a lot. Consistency there would have helped.
I'm looking forward to seeing what you do with the actual movie. I just wasn't too impressed with the preview.