@Virginia616 There are some special subcategories for Entire Home listings that Airbnb promotes as "unique stays," such as treehouses, houseboats, and yurts. But there's never been a similar subcategory for Private Room listings, so your themed rooms are already listed correctly. I like your choice of listing titles to fit the themes.
You will find that quite a lot of guests - especially first-time Airbnb users - are unaware that "Private Room" means that common areas are shared with others. So in the future, I recommend being extra explicit in your listing about how many people share the living space, and whether it's just the host(s) or also other guests, and reiterating this in your initial correspondence with the guests.
