I can totally understand your concern as this has been mentioned before.
The backgrounds are not AI, they are photographs edited in Photoshop to look more "painterly" and the process does merge a lot of detail together. I can provide source images if you would like me to go find them on my PC!
No need to delete your comment, as I hope this is helpful to others.
I have never used AI in my projects and never will. Usually, I am incredibly blessed to work with talented artists from all disciplines, or have the funds to purchase prepaid assets, but for this project I couldn't find the backgrounds I needed in this manner so I had to rely on my own "skills", lol!