1girl alpha_(kage_no_jitsuryokusha_ni_naritakute!) backless_dress backless_outfit bare_shoulders blonde_hair blue_eyes blush border breasts champagne_flute cityscape cocktail_dress cowboy_shot cup dated dress drinking_glass elf evening_gown floating_hair from_behind full_moon highres holding holding_cup kage_no_jitsuryokusha_ni_naritakute! kawausonokairi long_hair looking_at_viewer looking_back moon night night_sky outside_border parted_hair parted_lips pointy_ears purple_dress sidelocks signature sky small_breasts solo very_long_hair white_border