Amazingly welldone! After listening to your previous submissions, I can truly say that this is your Masterpiece! The chilling sounds really sets the horror atmosphere.
If you don't mind me asking, what vst you used for the growling sound around 2:45-3:25 ? sounds like a very distorted electric guitar/bass. I really liked the texture, reminds me of the "DOOM" game.
Hopefully you get a nice rest after this. Take good care of your health brother!