Hello, i wanted to make an LoRa for Brest's 3rd Outfit - Moonlit Night's Spring Vista, because it didnt exist for Illustrious yet. And when i started, i decided to just try including all 3 Skins.
I tested only at Strenght of 1, so i cant actually tell if that is best. When it comes to her Default Outfit you may want to try less, if you dont want Wings to appear, i didnt think they would actually show, since the reference pictures i used didnt really have them...
But atleast her "Moonlit" Outfit came out best, if you search for better results for the remaining skins, there are other Options for Illustrious online already.

Prompts:
Appearance: br3st, blonde hair, very long hair, sidelocks, blue eyes, pointy ears, large breasts,

Default Outfit: d3f4ult, white dress, underboob, sideboob, navel, showgirl skirt, center opening, bare shoulders, underboob cutout, hair ribbon,
This turned out worst, the dress isnt accurate, her nipples are visible through her clothing and the wings can be hard to get rid of.
Except you want the Wings, then i recommend using "full body" in your prompts, see my examples for her winged result. xD

Marine Muse: m4r1ne, white bikini, halterneck, thong bikini, sling bikini top, white collar, braid, hair ornament, skindentation, thigh strap, hair flower, see-through skirt, revealing clothes, wrist flower, floating hair,
This works just fine overall, thought some pictures still fail to replicate her nicely, her hair is kinda random i guess, just remove "floating hair" if it is a mess.

Moonlit Night's Spring Vista: m00nl1t, chinese clothes, dudou, forehead mark, hair ornament, multi-strapped panties, red panties, red sarong, sideboob, string panties, cleavage, navel, detached collar,
That Outfit got the best results i think, you can add: "holding paintbrush" for this one. I once got an unexpected nipple picture, so you may add some anti nsfw prompts if you dont want that.