This game has an astonishing level of quality for a jam submission. You're spoiling us with multiple mini-games, incredible artwork, atmosphere, a charming storyline and characteristic polish. In my opinion, you have a solid foundation for a commercial game here. That's what I came here to say and I could stop now because you've ticked all the boxes.
There are a few small and common niggles that other people have mentioned. I'll only repeat one of those: I would like the pace to be snappier. If you were to make this into a commercial game, I would love to see your characters in a more involved storyline and some deeper gameplay. For what it is now, I find it extremely impressive. Bravo to you both three!.