Rule 34 Dev - 1girl armored_boots black_leotard black_wings boots breasts building cathedral cityscape cloud cloudy_sky feathered_wings flying gauntlets glowing glowing_eyes head_wings highleg highleg_leotard highres holding holding_skull horns leotard looking_at_viewer medium_breasts monster_girl original pillar red_eyes serious skull sky smoke solo spine tail white_wings wings yellow_eyes zm|23320156977