I did try PuniTy before, the P.T. recreation made in Unity engine, but this is so next level!! Creepy eerie and spooky beyond compare! Thank you for this! Although, I never played the original P.T. since I don't own a PS4, but seeing the video comparison side by side, I would suggest you try adding the shadow of the swaying lamp, it adds a lot of creepiness to the atmosphere, IMO :)
I guess someone is bound to make Silent Hills, the cancelled project - a reality :) Is just a question of time (and copyright) :D ...And I'm sure when this happens it will be amazing! Although, personally I would be fine even if your project had nothing to do with Silent Hill. You are obviously tallented enough to make anything happen :D keep up the amazing work, my friend!