This is "Seed" from Zenless Zone Zero.

Her base prompt:

s33d, aqua hair, aqua eyes, small breasts, ahoge, short hair, hairclip, braided ponytail,

Flower in Bloom:

black gloves, metal collar, toeless legwear, two-tone gloves, toes, black-white dress, grey sleeves, sleeveless dress, bare shoulders, detached sleeves, hair ornament, stirrup legwear,