It's cool, a cool idea and i like the graphics style. music and audio could be better fitting. i suppose you used RPG maker's original database for that, right? This kind of stuff can really make a difference, especially when you're trying to set up a vibe. The inverted colors for the spirits are cool, but i still think the scary bits should be scarier (for example the darkness ending). Apart from that, i wish it would be longer and more challenging to get to the good ending. Maybe that would increase the sense of horror and suspense.
I hope this is constructive criticism. Keep it up! (cheers Br aliás huehe)