1girl, ahoge, androgynous, ass, bikini, boots, breasts, choker, fingerless_gloves, gloves, greyscale, hair_between_eyes, knee_boots, lulu_(pastime774), monochrome, navel, original, pastime774, reference_sheet, short_hair, side-tie_bikini_bottom, side_split, simple_background, small_breasts, split, stretching, swimsuit, thigh_boots, thighhighs, white_background