This was a very enjoyable experience, though I hesitated between thinking that it was a game or a piece of installation art. The environments are gorgeous, especially that concrete texture (I was drawing a concrete texture yesterday of far lower quality, so I really appreciate how nice this was), and the sense of relief when you finally see the first hints of colour is immense. I was practically running to get out into the open after the tantalising hints of sky :)

My only complaint is that there are too many places where you suddenly lose control, and the motion controls suddenly become "blunder forward until the screen fades out". Not only did these sections give me a loss of agency, they also dragged me out of my immersion in the game, making me wonder if I was meant to be exploring, or just waiting for the game to show me something different. I think it would be better if these scenes gave up any illusion of control and just changed on their own (e.g. the "curtain" or the "anechoic chamber") — even better still, they should have actual control, and let you go from one to another without feeling that you were missing something.

Would still recommend the game despite that, but I think it would be even better if that element were changed :)