1girl, animal_ear_fluff, animal_ears, arknights, bare_shoulders, black_background, cat_ears, closed_mouth, collar, dress, green_eyes, long_hair, low_twintails, mechanical_wings, midoriii717, official_alternate_costume, rosmontis_(arknights), rosmontis_(become_anew)_(arknights), simple_background, solo, twintails, very_long_hair, white_dress, white_hair, wings