Lookin quite good.
If it’s meant to scare people you need to think about it in a different way than placing “creepy” objects like bodybags. Fear comes from not knowing what’s coming. Once you’ve seen a bodybag and know what it is and does it’s not going to scare me. This is especially true because I have already seen bodybags in other games and I have a certain expectation that they are not going to move or do anything.
Twist that, and you have fear. moving bodybags, the sound of one ripping in the next room. The next room holds a ripped bodybag, but where is the body? Sounds of ripping in the rooms behind you. What is in them? where did they go? what is the danger? Should I get my shotgun or hide? Panic.
Also I think you should work with “detail textures” more, the type you load into a material mapped to world coordinates. You use those to procedurally add details such as moss or changes in color to objects. This helps both in visual quality and for the scary effect because you get free pareidolia and the modular level blocks then look different from eachother.