Very very cool! I love the atmosphere, and the mechanic of only being able to see certain things in your camera is really unique! Really creative enemy designs, with both forcing you to look in different directions, making you have to balance looking in multiple directions.
If I was to have one critique, it'd be that the camera window in the bottom right makes it difficult to see things when you have to move in that direction. I think thats just a level design consideration to not put something important in that side of your levels.
Otherwise, very well done on a great demo!