Tags: 1girl bare_shoulders blue_boots blue_dress blue_eyes blue_hair boots closed_mouth collarbone dress elf floating_hair full_body highres holding holding_staff light_blue_hair long_dress long_hair long_sleeves looking_at_viewer mage_staff non-web_source official_art pointy_ears siune_(sao) smile solo staff standing straight_hair strapless strapless_dress sword_art_online transparent_background tube_dress very_long_hair