@Barbara2737 We had this exact situation. Our space was actually an event space for micro weddings prior to COVID. We did NOT book through ABB as it is not appropriate and we would have left money on the table. Instead we had a price and package list for the weddings through our own website and social media. One of those prices was photo location. You have to have a photo location agreement (who owns the negatives, where are they allowed to shoot, do you get credit on images, do you get an image to share, does the photographer get consent forms, what happens if something is damaged etc) and this is not something ABB will enforce. Likewise you don't want a review based on how good the bride looked in the pics or how amenable to photos your space might be. You want a review based on the stay.
I would ask ABB to cancel and say "I am sorry I had to cancel this stay. Airbnb is not the appropriate platform for photo locations. We do occasionally rent our space privately for photos and have a separate agreement and price list for photography. Please have your photographer get in touch with me on social media at (whatever address.)"
ETA your space is adorable and you will get this request over and over. I would suggest really exploring a photo location income stream. Its pretty easy money. We had local photographers that would get in touch with us for family, pregnancy and wedding portraits. We booked them a lot mid week and had stays on the weekend. And no reviews to worry about!