What two English artists were often asked to paint the same subject which allowed for a critical discussion of their distinct styles?

The two English artists often asked to paint the same subject were J.M.W. Turner and John Constable. Their differing approaches to landscape painting—Turner's emphasis on light, atmosphere, and color versus Constable's focus on realism and natural detail—invited critical discussions about their unique styles and artistic philosophies. This comparison highlighted the evolution of English art during the 19th century and showcased the contrasting techniques that defined their work.