Complex sentence: Karreris's works became more elaborate as time went on and he also continued to compose works of non-Greek subject matter such as "Fior de Maria" (1868) and "Marie Antionetta" (1884).
Split into simpler sentences: Karreris's works became more elaborate as time went on. He also continued to compose works of non-Greek subject matter such as "Fior de Maria" (1868) and "Marie Antionetta" (1884).