This model is intended to imitate Greg Capullo's artstyle. Greg Capullo is the penciller for the New 52 Batman series starting with Court of Owls. This is a LoRa trained on illustrations by Greg Capullo in a mix of color, ink, and pencil. It's somewhat finicky.
Z-Image:
Sometimes it really get's the style right, other times it's a little looser. I'll update this description if I find any techniques for getting a more specific style. See sample images for prompts that help guide the final product.
Flux Klein 9B:
I think this is LoRA is far more accurate than my Z-Image LoRA at getting the style down. It's also much easier to prompt, and adding additional description of style is more if you want to adjust the style a certain direction, not necessarily towards Greg Capullo's style (for instance make the pencil art sketchier). You can see some where I used Flux Klein's edit capabilities to simply transform an image into Greg Capullo style.