Thank you, that's really helpful feedback! Totally get you - when I showed it to my partner he said it had luigi's mansion vibes! I found it quite tough to balance between an eerie sound, and a more spooky cartoonish sound, particularly in the main theme at 2:07, I couldn't work out if the dulcimer sound was creepy or like playfully spooky (I was aiming for creepy!). Wasn't enormously happy with that section, but yea I think you're right it's very dense, a lighter texture would probably have been creepier. Also love that idea of diatonic harmony somewhere to show the plain atmosphere, that'd probably work really well, a very boring and undeveloped sound at some part, it would probably be quite unsettling knowing it's a horror to have a very basic sound, you'd be on edge like when is this gonna go wrong!
Haven't had a chance to listen to other submissions yet - I'll give yours a listen soon and leave it a rating!