1girl, artist_name, bikini, blue_background, breasts, brown_eyes, brown_hair, contrapposto, dated, front-tie_bikini_top, front-tie_top, gradient_background, grey_bikini, hibike!_euphonium, looking_at_viewer, multi-strapped_bikini, navel, oumae_kumiko, short_hair, small_breasts, solo, standing, suzawa_aya, swimsuit