This was a blast to play through. Short, sweeti, well done; I enjoyed the heck out of the horror elements, the tension. It was just a solid, well done game, with a lot of thought put into it.
If I had one thing to request I'd like a way to turn off or down the shader. In my opinion, it makes the game look worse, but that's 100% personal taste.
Keep up the amazing work, you have a real skill here for game developer. Can't wait to see what you do next!