What AI art generator are you using??
I used Novel AI to create a base image that I am happy with, make adjustments to the sizes of the characters in an art program, regenerate the image until it looks how I want, and then I run the image again through the Something Anime 2.0 filter on Dezgo.com. the process has become more time consuming as the projects has been going since I've been getting more critical of how the final images look as well as the natural issues that come with generating characters above a certain size that the AI's have a hard time understanding.