Great but...
The animation was solid, the story interesting, the landscape cool but... Your choice to keep just a background track, no sound effects or mood setting music(other then the already mentioned background track) took what would have been a near perfect work and really ruined it for me. It is really a shame, the effort really does show in the animation/design.
Just wanted to also add the "camera" work you do is wonderful with all the tight and low angled shots. A lot of people try to get away with keeping things flat to slip by without having to animate certain things.