Hey, you did a great job on this! The art style of the game is great and I liked how the shadows worked in this. For your first horror game, this is a great start.
I think you should try doing this with UI as it would turn out even better with it!
I've also recently made my first game and I would love if you could check it out. It is a 2D adventure game called "ILLUMINI" and some feedback on how to improve it would be amazing! 😁