Illustrious model, best results with anime style for now, I trained with mostly two outfits, keyword for it- beginning outfit, final outfit. check the sample images for prompts.
Update- beginning outfit, blue outfit
final outfit, black outfit, - gives more consistence if you focus on the outfit, cloak and cape keyword helps.
If you want, you can Add negative prompt- comics. And in your main prompt add : anime coloring, anime screencap, for a brand new improved style for this Lora. These testing was done in hassaku XL