Complex sentence: Olsen's primary subject of work is landscape, though he has been labeled as an abstract artist, however Olsen rejects this accusation, stating, "I have never painted an abstract painting in my life".
Split into simpler sentences: Olsen's primary subject of work is landscape, even though he has been labeled as an abstract artist. However Olsen rejects the accusation, stating, "I have never painted an abstract painting in my life".