Very creative submission (both musically and thematically), it is very unique I liked it a lot !
Really liked the underlying eery part in the main theme, very effective storytelling it works very well (and this contrast of seemingly cheerful and dread being present between the second and third track makes this quite cohesive), reminds me of similar music found in Earthbound.
For the story you came up with the instruments associated with the cult feel oddly very alien/futuristic (I would have imagined something more along the lines of the Forbidden Siren OST for a village that turned to hell), maybe there is a huge technological force behind the village making it seem normal until the illusion starts to fade for the protagonist, and they try to dispose of them (a bit like the cult in the game Harvester) ?
Great work overall, congrats !