If generative image AI is what you mean to specifically prohibit, it might be worth just saying that in the license text. "Artificial intelligence or machine learning projects" could be interpreted pretty broadly, especially by anyone that doesn't know anything about those topics, or who hasn't been keeping up with AI art news.
Of course, I get it if you just want to head off as many potential future problems as possible.
(Also, is there a reason you haven't updated the license text in your older projects to say anything about generative AI?)