When I started the game, I was astounded by how similar ours are to each other! I later realised, of course, that your game has far more actual game than mine! Initial impressions aside, I quite enjoyed exploring the little world you created.
There were some negative points, such as the very low frame rate in some places (no doubt not helped by my poor hardware, but it certainly could've done with distance fog or other optimisations) and the rather comical bird AI which saw them regularly flying into the ground and spinning away wildly like purple, winged boomerangs.
I also felt the particle effects would look better if they were less bright. As CAKE once said, 'the ornaments look pretty, but they're pulling down the branches of the tree'.
Overall, though, I liked the music and the mood, and I hope you give this more development after the competition is over.