Complex sentence: Early in the series, she has very short, cropped hair and prefers to dress in a rocker type style, but later, she becomes more mature and wears clothes that are more conservative, and grows her hair somewhat longer.
Split into simpler sentences: Early in the series, she has very short, cropped hair and prefers to dress in a rocker type style. Eventually she becomes more mature and wears clothes that are more conservative, and grows her hair somewhat longer.