I enjoyed the vibes of this one. The first time I heard the screams it was creepy and had my hair standing up. The art, ambience, and SFX really make this one. It felt really detailed here so great job on the environment art. Weird cthulu like stuff going on here. Really had to be strategic about my rounds later, especially going against the Bullet Hell enemy. Enemies were dodging my bullets, I 'm not sure I like that feature.
I'll echo some others and say the abominations felt a bit too fast and ended up being more frustrating than scary. I think it's a combo of enemy placement, your light mask (which is great!), and speed of the enemy. I liked SFX informing the player they've been spotted, but in some of the tight corridors it just not enough time. The tension is now lost and instead of it being an oh shit moment it's more of a memorize where all the enemies are in the level deal. Which is a shame, because it really destroys the horror element. In horror you want it to be about the tension of what's around the next corner. I think your light mask helps that. The speed of the enemies and how quick the player dies takes away from it.
The speed of the player felt a bit fast as well. Shooting worked except for the dodging bullets thing.
Overall I think the vibes carry this one.