Oh man, I don't know where to start. If there's a weak spot in this game, it's your theme interpretation, you guys clearly have what it takes :).
I love the game, you made a platformer with lots of great mechanics, including enemies with simple AI (this is something I wanted to do in our game, but did not have enough time to code!). The details are amazing, the jump sensitive to time the button is held, the little instructions and self-teaching mechanics, added at just the right time to keep the player interest, all that calibration was perfect.
If I had to be critical (as others have said, what we like more, we get more critical of, that is clearly what is happening here!), I'd say maybe put a little more into the main character art. I see that simple fit him, totally, but you're always seeing him/her, and the ability's definitely there, as we can see from another fine attention-to-detail aspect--the parallax.
Something about the animals aspect reminded me of Terranigma, and at the same time (particularly the opening scene), a similar aura to the cutscenes in Number Munchers hahaha =D.
Oh also, great level design. Stuff to find, made me think just long enough for a game jam game. High marks from me, great job!