Kalleira is such a cool character and I really love her aesthetic but her storeroom is really lacking.
This is the store currently, an empty hexagonal room with no lights and a single metal trapdoor.
Here’s my idea for what the store could look like:
At the very, very least you could give her a nicer trapdoor and a light. This area looks and feels unfinished and doesn’t even slightly hold up to the rest of the lobby.
If the area does end up getting a revamp I’d recommend going with the witch/fortune teller look because it really fits her character. Maybe hang some potions on the wall or give her some open spellbooks? She cooks her potions in the lighthouse so a cauldron wouldn’t be outlandish. Just a little something to spice this area up would be fantastic.
Another idea is relocating Kalleira every major update and giving her a small pop up shop where she can continue to sell her black market goods in privacy.