For a game that has many leaps of faith, some of the jumps are a bit too far. I also didn't know that the light monsters would kill me, so that was frustrating, especially since I had already made it that far. If this were to get more development, I think the player would appreciate a light section with a checkpoint where they can relax and not have to feel the stress of the dark. I love the haunting vibe you've created. Music and art while simple keeps the player on their toes. A jumpscare would ruin anybody.