1girl ahoge arms_behind_head aster_tatariqus blue_dress blue_ribbon boots dress full_body gram_(phantom_of_the_kill) grey_footwear hair_ribbon long_hair looking_at_viewer official_art open_mouth ponytail purple_socks red_eyes redhead ribbon simple_background socks solo straight-on teeth thigh-highs thigh_boots transparent_background two-tone_dress upper_teeth_only white_background white_dress