I really love the visual style! I think the best part is that you can't really make out what things are in the distance, you can kinda say something looks humanoid but you're not really sure and that uncertainty is really creepy. I think the magic breaks down a bit when you get close to them, they feel too detailed up close. The other problem is that the paintings and posters sort of glitch in and out when you get close or away from them, I'm not sure if it's intentional.
The place feels really liminal and I love that too! I appreciated all the small details you put into the experience.
I have mixed feelings about the camera. I like that you can't rotate up and down freely, it makes you feel clumsy and vulnerable. However you can easily miss some details and it's hard to pull off correctly, in fact you (the developer) had to force the rotation a few times to look at things.
On the audio department I think the game is missing some creepy ambience and more sound effects, in fact the silence would work even better if alternated with ambience.
Overall I really liked this, great job!