I'm going to sound like a parrot, but yes, this is so relaxing and peaceful. Love the low poly minimal art style. The controls are nice and the only difficultly I had was "descending" on to the goal. I really like how the (literal) atmosphere changes with each level. Great submission, well done. :)
P.S. Did you ever play Pilotwings on N64? Reminds me so much of that great game.