It wasn't very inventive. It had some, um, original moments in it (rolling over the gap), but it was too plain and way too short. Try to rev it up a little bit, like adding a few more textures, and if you were aiming at a platformer, just go to strait 2D, instead of Adventure Mode. If you weren't aiming for a platformer, then just take it out of Adventure Mode (I dont like adventure mode- gliding becomes reckless).
Mystic Realm and Morph's Level pack are my favorite two level packs, and to me, a level isn't really good unless it is as colorful and interactive as those two.