Used kohya_ss gui.
Here are some parameters and helpful keywords:
• Checkpoint: AbyssOrangeMix3
• Trigger Word: anna nishikinomiya
• Weight: 1
short hair, silver hair, blush, aqua eyes
Outfit helpers: underwear, jacket, skirt, necktie, hairband
To produce similar results I recommend EasyNegative, this negative embedding was used in the sample images. I'm also using Clip Skip 2 and hires fix.