Complex sentence: Hayley Knowles showed prodigious artistic ability from a very early age; drawing faces by the time she was 1; she painted detailed scenes by the age of three and her later work has been compared to that of the old masters.
Split into simpler sentences: Hayley Knowles showed prodigious artistic ability from a very early age; drawing faces by the time she was 1 and was painting detailed scenes by the age of three. Her more recent work has been compared to that of the old masters.