Guam didnt have an Illustrious release yet, so i went ahead with it.

Recommended Strenght: 0.7

Overall just her 2 trigger words can generate her 2 outfits on their own, i still recommend all listed prompts for better details.
Also, her small heart below her eye usually gets generated as long as her face is big enough on the picture, i didnt try to include it in the prompts, but you can try "facial mark", "hearth tattoo" or "face tattoo" maybe.

Default: guam default,
Appearance: star-shaped pupils, very long hair, blonde hair, twintails, purple eyes, blue eyes, two-tone eyes, large breasts,
Ouftit: black gloves, fingerless gloves, black thighhighs, hair ornament, blue ribbon, absurdly long ribbon, collar, highleg, long sleeves, sleeves rolled up, pelvic curtain, cape, black belt,
Extras:
grey boots, mechanical boots, (if you want full body pictures)
highleg leotard, (replace "pelvic curtain" with this if you want to remove it)
For this ouftif you can add: "mecha", "science fiction" or "robot" if you want, it works well with her, thought i didnt want it myself.

Stage-Setting Charmer: guam stage-setting charmer,
Appearance: star-shaped pupils, very long hair, blonde hair, twintails, purple eyes, blue eyes, large breasts,
Outfit: blue leotard, blue thighhighs, fake animal ears, garter straps, white gloves, top hat,
Extra: high heels, (Again for full body shots)

This outfit is heavily influenced by her background, so she usually comes with the stage background. Luckily its easy to replace with other backgrounds.