This is a Lora of Sutra from Twin Angels:

My recommendation for getting as close to her outfit as possible is:

sutra, 1girl, solo, dark skin, dark-skinned female, sutraclothes, long hair, ponytail, white hair, breasts, yellow eyes, retro artstyle, swimsuit, bikini, 1990s (style), jewelry, facial mark, forehead mark, bracelet, bikini top only, very dark skin

"sutraclothes" attempts to get her red top but it's still not quite right

"sutrauniform" is supposed to get her seifuku but you might have to add "school uniform" and make sure it's blue.