A good opening to what might be a good movie
I think you did a great job with the scenery and the overall aesthetics and feel to the movie all worked very well together.
The animation was fairly clean and the character designs were nice. But one thing I thought could have used some work was the facial expressions a bit more. Some of the characters just seemed to have the same expressions over and over again, and also sometimes their eyes are too wide open, but that's not a huge deal really.
I can say that I can't wait until you come out with Episode 2 and really show us what you got in mind, because I am sure you will not disappoint.
Great job :D