Oh that is an interesting idea, to train the AI with AI faces that are actually believable. Its like an anonymous dataset that is believable enough for this purpose without having to have anyone's real face get featured in the next AI DALL-E .
As much fun as I am having with the prompts I am really getting intrigued by the data used to train them. I think that's going to take more time and dedication than I can actually contribute but maybe soon someone will post an easy to follow tutorial.