1girl, black_hair, brown_eyes, covered_navel, cowboy_shot, diving_mask, diving_mask_around_neck, goggles, kantai_collection, kimura_shiki, maru-yu_(kancolle), one-hour_drawing_challenge, one-piece_swimsuit, school_swimsuit, short_hair, simple_background, solo, swimsuit, thick_eyebrows, upper_body, white_background, white_one-piece_swimsuit