One of your most beautiful games . Reminds me a little bit of the game Flower. The best moment was for me when I catched up with my light friend again and have done these cool spiral rolls. The next highlight were the additional friends around me. I guess they are friends. It felt like it. :D
The one thing I found a bit odd was that at the beginning you were pushed by something and it has a kind of challange character and of this reaseon you got sometimes a giant rock in your view. Your last games had more freedom I think. Because to explore and fly around was one of the great things at the end. And the camera can be a bit improved in the last area. More a smooth follow maybe?
A big praise to the composer. The sounds are fits perfect to this dreamy atmosphere. :)