Rule 34 Dev - 1girl bikini breasts choker cleavage collarbone cowboy_shot floating_hair greyscale groin highres long_hair monochrome navel novel_illustration official_art restia_ashdoll seirei_tsukai_no_blade_dance shimesaba_kohada small_breasts solo standing strapless strapless_bikini swimsuit very_long_hair wrist_cuffs|10232935830