<https://s.mj.run/iUPn26pjr0A> Create an illustration of a brother and sister from a powerful vampire family. They both have white hair and red eyes. The elder brother is a man in his thirties. He is cocky and arrogant with a slim but well muscled frame and messy, unkempt hair. He loves to pick fights. The little sister is a teenager and is younger and cuter, with a fluffy bob haircut and a slim, youthful frame. She has a cheerful disposition. Character illustration on dark background. --niji