The game builds up slowly, but the final sequence is haunting - great game!
Loved the way you utilized "P.T." and liminal spaces horror together. This was a decent experience with lots of potential. I think adding some additional scares with the balcony area and the ceiling would be awesome. I would also suggest adding subtitles, because it was difficult to understand the radio. And, my final suggestion would be to add an exit screen, instead of just closing the game.
Solid horror! Best of luck with the future games.