You can really "cheat" by modifying the custom prompt to re-insert or remove specific features. For example, "generate a prompt for this image but adjust it by

You can really "cheat" by modifying the custom prompt to re-insert or remove specific features. For example, "generate a prompt for this image but adjust it by making everything appear in a more primitive, earlier evolutionary form, or in an earlier less developed way" would make things de-evolve. Or you can just re-insert any theme or recurring characters you like at that stage.