The game looks amazing! Sounds and music are also super cool (except the 'X' sound that I've been spamming all game, which kinda ruined the immersion).
The puzzle looks cool, but I didn't have time to figure it out because on both my playthroughs I successfully brute-forced it before I could understand anything. The fact that all the controls are introduced in the game in an easy-to-understand way is also a really big plus.
Additionaly, (I don't know if it was supposed to happen or not) my screen was getting weird lags from time to time. Also, I didn't understand the level with the mouth, was it supposed to reset whenever I clicked 'Z' on the eye?
In any case, the art, music, sound, and overall ambiance are absolutely magnificent.