1girl, o, arms_up, bare_shoulders, bikini, blonde_hair, blue_eyes, blue_hairband, blush, breasts, cleavage, collarbone, girls'_frontline, hair_bun, hair_ornament, hairband, large_breasts, long_hair, looking_at_viewer, nakaryo0404, ocean, official_alternate_costume, on_water, open_mouth, single_side_bun, sitting, snowflake_hair_ornament, solo, suomi_(girls'_frontline), suomi_(midsummer_pixie)_(girls'_frontline), swimsuit, upper_body, water, white_bikini