Oh my gosh!
For taking only two weeks, that was very good. Yea the story definitely lacked a little, but I think you could explore these characters a little more.
I love your animation style and creativity, I've never seen such a weird looking tree and those creatures were very interesting to say the least. I think if you develop them a little more and give them a good story, you'd have a great flash on your hands.
Really makes me want keep an eye out for your animations in the future, good work!