I just finished this game, and oh man it was awesome!
Very beautiful, love all the effects, really high quality. And the game is challenging, a thing that I love!
I can see that only a few people will finish this game. I got one key, didn't know what to do and dashed to my death, then I got both keys and won!
Congratulations man, one of the bests I've played so far. (can't see much of the theme though)