The Pumpkin Hut! Collab with Azzyfree and Domille's Wondrous Works

In this Collab Domillie, Azzy, and I decided to create the basis for an interesting encounter surrounding a magical Pumpkin hut. Dom created it's exterior A phased map in an autumn forest where the pumpkin hut magically grows in the clearing. Where Azzy free-designed who might live in the hut, They settled on this adorable idea of a flock of various familiars each dressed in their Halloween costume, They also threw in a grim reaper which made me think the interior must be where that big softie the reaper takes care of the poor familiars of wizard's he's reaped.

So I designed what amounts to a clubhouse/ tree fort for the various familiars Azzy came up with! The interior phases center around the idea of Domille's that the hut grew magically fast. the inside begins to rot away just as fast, perhaps the magic is wearing off or some nasty rot elemental is threatening the familiar flock, and it's up to our heroes to lend a hand!
Think you can guess which areas in the interior belong to which familiar?