The long and the short is: You did amazing.
This game is fantastic. Like, this has easily become one of my favorite games, ever. And I have played a lot of games.
The moment I started I got a mixture of Emily is Away mixed with Simulacra. A wonderful blend of horror, mystery, and drama.
Your pacing was incredible, the scares were so well done. That moment when the camera turns on was a flawless execution.
The puzzles were challenging, and that's not a bad thing. I thought they were very unique and felt very at home with the story. Nothing really took me out of the game. Bravo.
And the story. Oh my Lort the story. So well done, so well paced, so fantastically tense. You sped it up when it needed it, you slowed it down when you were showing emotion. A very, very well done game.
Take this from a published author, you have great skill with storytelling. I truly hope you continue to develop games like this. I would really urge you to make it so that people can download it onto their computers to broaden the appeal. If you really wanted to push it further, I think developing the downloadable version to be able to manipulate files on the computer itself would be the next level for this game, but honestly not necessary for how well done its current iteration is.
I think you as a game developer hold great potential and hope you continue to pursue this avenue.