First and foremost: I love your approach to the jam restrictions; I haven't seen a single other entry that looks even remotely like this one.
The audio did a really good job of setting a creepy atmosphere, but it also got pretty annoying after awhile.
From a gameplay point-of-view, I would have preferred if the map was smaller and there were less tonics to find. I don't know if I managed to find them all, but walking around large, non-distinct areas looking for tiny bottles hidden in corners got tedious pretty quickly, especially since you could only carry four at a time.