wow.
If for no other reason, I recognise this game for it's sound design. I should certainly be doing so, seeing as you were a candidate for best audio.
I loved the music. Infinitely relaxing, it fitted perfectly with the asthetics of the game (which were quite lovely too). I also loved the interactive element when it came to the sound. Sometimes I would jump, double jump or float, and the chimes that played created perfect harmony with the music. The notes you have chosen musically harmonised with the specific chords of the song at all times, and it was an excellent design choice.
Unfortunately, many people will not conciously recognise your design choices in this regard; this is made worse by the fact that it is difficult to enjoy the music, a big part of the experience, while you're pressed for time as you play the game. It is also a very different platforming experience to many, and essentially players are taken out of their comfort zone and must play the game a different way to traditional platformers (in which you can move left and right). Players will be focusing more on trying to work out how to play the game well, rather than the actual visual and audio design. This is made more intense due to the time limit.
None of this is actually bad, but I found myself stressing as I played, which is disappointing because I would imagine that if time were not an issue, the game would be very relaxing. And I wanted to be relaxed by, and really enjoy this game. It wasn't an incredibly hard game, but I feel that it was more challenging than it really needed to be, and that was because of the time limit.
Perhaps you could take this same idea of interactivity between player actions and sound design and apply it to another style of gameplay (perhaps less demanding in terms of concentration and skill). You could also take the gameplay ideas present here and make it the focus of a game, rather than complicating it with (admittedly amazing) sound design and graphics.
Of course, this is all my opinion and irrelevant to this actual submission, and I will score this game for how it is.
In short, it was a fantastic game with amazing music, clever sound design and pretty graphics. However, the score has dropped a bit due to unnecessary time restrictions in a game that gives an atmosphere of relaxation.
Keep it up, bro.