I'm not going to sugarcoat it, absolutely horrifying. Well done with everything in there.
Played with the Jam version, got to the end on my first try but at the cost of my own sanity because halfway through I started talking to Youmu, and from Room 60 or so I started counting from 1 (>▽<)
From start to finish, I think it was paced well enough. Got used to walking and identifying the rooms from Rooms 1 to 9, Then there was the Yuyuko, really a mind shaker the first time. Right after there was the Mima, really got a smile out of me when she said The Line™ - doesn't make her any less terrifying though. And then there was this chime. It was when I realized the Goblin didn't squeak that I started going "Oh no how dare they no no no no" as I dashed through the rooms. Needless to say that was a ride.
So yes, perfect atmosphere for Halloween, would get videobombed by the Umbrella again.
P.S. : Oh yeah one thing I think would be interesting is to have the ghost's noise actually emit from them, which could help the player locate their general direction and how close they are by sound. To Yuyuko, Mima, and I think even for these haunted wardrobes. Would be funny if the chime came from you (because I really have no idea if it was a ghost causing this so I assumed it's either from the plushie or it's from the rooms themselves. Imagine if the Goblin had a small chance to do the sqeaky Suika singing from the WE ARE JAPANESE GOBLINS video