i'm really into this game's premise--i feel like there's a lot of potential to have some really emotionally connecting moments for a player. not sure how much of a story you have so far but it would be interesting if there was some element of choice in this narrative, especially as an RPG.
i also agree the village and interior map look really great so far! for the night part of the village--if you're able to import + export tilesets what i would do is export the tileset, add a dark blue overlay in photoshop, and import it separately.