This setup has been working pretty well. Sometimes you have to insist rather strongly that it does not modify something else in the prompt portion (the second part), and then just keep rerunning/refining the prompt until u get what u want. compositing step is required because it subtly shifts the gen and you have to adjust, surgically apply the edit, etc. The reason the fighting Buns look just like the reference is i hadn't realized i needed to give it permission to modify it, as well as giving it a sense of scale.