Complex sentence: Her talent led to her being known as the "Petite Picasso" as her work, to some, resembles that of the master; she has been known as a child prodigy until late in her teens.
Split into simpler sentences: Her talent led to her being known as the "Petite Picasso"; as her work, to some, resembles that of the master. She was known as a child prodigy until late in her teens.