score_9, score_8_up, 1boy, solo, male focus, killua zolyck, killua zoldyck /(hunter x hunter/), killua zoldyck, hunter x hunter, hxh, white hair, blue eyes, short hair, shorts, (slim), android, (cyborg), metal limb, prosthetic, metallic, rust, (cyberpunk), blade runner, bare legs, jacket, open jacket, navel, sitting, on ledge, leg up, from above,  science fiction, torn clothes, looking up at viewer, masterpiece, best quality, very aesthetic, handsome, cute, outdoors, city, neon lights, night, dusk, roof, skyscraper, boots,