Hey man! I finally had time to check your game! I noticed heavy influences of both Silent Hill and RE series, and considering that my horror music are inspired on these, they just nicely fit the game! I'm glad!
I think the demo is very well polished, I really like the dream-like VFX graphics and the oppressive atmosphere! The FPS is perfect, not buggy, and the puzzle-like messages are intriguing.
I think that my only criticism would be to take inspiration from these older games but tweak them and make their mechanics a little bit different, so that it feels even mroe like something of your own!
By the way, if you need any further professional sound work in the future, do not hesitate to contact me! Here's my website: fictiumsoundesign.com