Wow, @Brendan292, I feel almost incompetent to expertly judge such a grand, beautiful castle, but here are a couple of tips.
As @Clara116 said, you definitely need more photos. Imagine yourself as the guest, and what you might want to see. Showing the kitchen, more of the grounds around the castle, the views from the inside of the castle looking out, more bathroom and bedroom areas, etc. would be helpful. No number of pictures is too many for a place like this!
Also as @Clara116 said, you need better photos to more closely match the quality of this listing. Better lighting would help in the bedrooms, even though you turned the lamps on. Professional cameras and lighting would really enhance the highlights of this beautiful place.
Captions under each photo would help as well. It’s hard to tell with a couple of the photos what the purpose of the room is. Put the photos in an order in which you can show to a certain extent the flow of the place as you are walking through it, starting with the foyer.
Expand your description. Put yourself in the place of the guest, and describe the place imagining what they will experience.
Have you considered renting out by the room? That might make the cost within reach of a wider group of people. Also, I notice you have a 1-day minimum. Do you have a 24-hr gap between bookings? I would think a place this size would take many hours to prepare for the next guest, so make sure you have enough time.
As you said, you know you are not quite finished, so I’m sure you have already thought of some of these items. Please come back when you’ve refined it - I’m sure we’d all like to see the finished listing.
Congratulations on acquiring and preparing such a beautiful property. I’m sure it was no small feat. You must be very proud!
