Suggestions for psychological horror observation game map

I am working on an psychological horror observation game and want to make the visuals a big part of it so I would really appreciate if you could suggest some stuff to add, remove or replace to the game, any lightning tricks and stuff like that. I want to make it as realistic as possible on Roblox.

So far, the visuals look great and are definitely realistic enough for a Roblox game. I noticed that the footsteps sounded oddly muffled and quiet; I would raise the volume a bit (especially if your walking on a wooden floor). Additionally, there could be some lights that go insanely bright and then slowly revert to their standard brightness for a spooky lighting effect.

Overall, this looks great!

I suggest to understand the meaning of Horror Psychological itself, there are videos will explain the concept of it very well detailed, and looks great and promising.