Let's to Swim

score_9, score_8_up, score_7_up, 2girls, multiple girls, anime coloring, 4k quality, masterpiece, best quality, solo, (i-401 (kancolle), 1girl, medium hair, hair down, brown eyes, brown hair, smile, closed mouth, dark skin), (hiryuu (kancolle), brown hair, short hair, one side up, brown eyes, large breasts, smile, open mouth, pale skin), highleg, highleg one-piece swimsuit, competition swimsuit, one-piece swimsuit, highleg swimsuit, black swimsuit, two-tone-color swimsuit, full body, arm at side, side-by-side, height difference, height envy, holding hands, full body, competition swimsuit, one-piece swimsuit, highleg swimsuit, black swimsuit, two-tone-color swimsuit