159cm, 1girl, d, black_hair, black_one-piece_swimsuit, blue_eyes, blush, breasts, collarbone, competition_swimsuit, dark-skinned_female, dark_skin, fins, head_fins, long_hair, looking_to_the_side, mermaid, monster_girl, one-piece_swimsuit, open_mouth, original, pool, shadow, sitting, smile, solo, swimsuit, teeth, upper_teeth_only, water, wet, wet_clothes, wet_swimsuit