Please, please refrain from using AI to "create" as a writer yourself, you should know how bad it is to use AI to "create" something, because not only is it bad for the environment, it also steals from actual artists work. I'm not here to lecture you or anything, but if I'm being honest, as an artist, If I caught a whiff of AI on a cover I wouldn't bother with the book at all, and that's why I'm here answering, you're still young, so I will not judge you. I wish you good luck on your journey and that you're able to complete your book.
