It's a real shame that generative AI was used for the art here-- there is so much public domain art out there that could easily fit the tone of a 1920s setting.
That's a fair (and appreciated) point. This was my first foray into original work. I am planning to make a revised edition that will use either public domain or original (but not great quality) art. Lots of folks seemed to like the content but didn't like AI art. My thought was that since I am not selling it and I can't afford to commission an artist that it would work, but people feel strongly about it and I respect that.