This was such an amazing experience to go through! It had such a high level of polish that I was very pleased to see.
You did an amazing job of capturing the atmosphere and started to develop a sense of fear early on.
There's only two critics I will give here.
1.) Some of the hallways seemed just too dark for me to see much, and what I couldn't see (not by design I'd assume) I couldn't be scared of. And
2.) While the atmosphere was developed exceptionally well in the first half of the game, by the second half it started to seem a bit lazy, and more jump-scare tactic.
Other than those 2 things this was an amazing experience!!