Comparing Early and Late Paintings by Philip Guston

These paintings by Philip Guston were executed 37 years apart from each other. Are there connections in theme/subject? In comparing these two paintings, how would we say his style and approach to painting changed over the course of his career?



Philip Guston, "Gladiators", 1940, oil on canvas,  24 in. x 28 in.



Philip Guston, "The Street", 1977, oil on canvas, 10 ft. wide, 6 ft. tall