Complex sentence: Consequently, she placed third behind Li Yuchun and Zhou Bichang, whose creative eccentricity and tomboyish appearances triumphed over "the old, introverted, (and) pretty-girl" image.
Split into simpler sentences: Consequently, she placed third behind Li Yuchun and Zhou Bichang. Their creative eccentricity and tomboyish appearances triumphed over Zhang's "old, introverted, (and) pretty-girl" image.