As another commenter said, I LOVE the flash light and how so much color is drained when not looking at an object. However, I think a little more of the texture should still be visible when not looking, as otherwise everything becomes too grey.
I also couldn’t pick up keys or open doors without looking at the exact angle the game wanted and then rapidly pressing e until the key was registered.
I like the repeating hallway idea! The atmosphere was well done.