Complex sentence: Living first in Colorado then Pittsburgh, his career brought him eventually to New York, via Philadelphia and Chicago, and in New York the dealer Macbeth established him as one of the finest portraitists of the 20th century.
Split into simpler sentences: Living first in Colorado then Pittsburgh, his career brought him eventually to New York, via Philadelphia and Chicago. In New York the dealer Macbeth established him as one of the finest portraitists of the 20th century.