Complex sentence: The style he developed during this time using simplified forms became increasingly more abstract and would mirror the locomotives, stark landscapes, and large mechanical shapes of Kline's native, coal-mining community in Pennsylvania.
Split into simpler sentences: The style he developed during this time using simplified forms became increasingly more abstract over time. Many of the figures he depicted would mirror the locomotives, stark landscapes, and large mechanical shapes of Kline's native, coal-mining community in Pennsylvania.