Mizushima Marika from D4DJ.
It is 100 official pictures and autotags.
Example prompt for stage outfit Marika:

marika, 1girl, solo, flower, breasts, shorts, navel, purple eyes, hair ornament, hair flower, open mouth, long hair, smile, looking at viewer, side ponytail, denim shorts, bikini, stage outfit,

Casual Marika:

marika, 1girl, one eye closed, solo, purple eyes, long hair, brown hair, skirt, smile, plaid skirt, plaid, shirt, breasts, white shirt, casual outfit

Bikini Marika:

marika, 1girl, solo, swimsuit, jewelry, underwater, bikini, breasts, bracelet, bubble, hair ornament, purple eyes, flower, fish, long hair, coral, hair flower