Rule 34 Dev - artist_name black_headband black_jacket blurry close-up closed_mouth collar depth_of_field firefly_(honkai:_star_rail) floating_hair grey_hair hair_ribbon hand_on_own_chest headband honkai:_star_rail honkai_(series) jacket long_hair looking_at_viewer night night_sky omuretsu purple_hair ribbon sky star_(sky) starry_sky|21367496007