Nyubara Reona from BanG Dream.
It is 100 official pictures and autotags.
Example prompt for casual PAREO:

pareo, 1girl, solo, smile, long hair, skirt, twintails, multicolored hair, pink hair, bracelet, jewelry, looking at viewer, hair bobbles, bangs, thighhighs, blue hair, two-tone hair, necklace, casual

School uniform PAREO:

pareo, 1girl, twintails, solo, black hair, skirt, glasses, long hair, red eyes, smile, school uniform, jacket, looking at viewer, ribbon, pleated skirt, shirt, hair ribbon, reona

Onstage PAREO:

pareo, 1girl, black hair, smile, solo, gloves, multicolored hair, fishnets, long hair, black gloves, white hair, twintails, red eyes, looking at viewer, jewelry, choker, skirt, two-tone hair, onstagesk