Complex sentence: One of the judges at the Salon, Étienne-Jean Delécluze, thought it "a real daub"; another judge, Antoine-Jean Gros, called it a "chastened Rubens".
Split into simpler sentences: One of the judges at the Salon, Étienne-Jean Delécluze, was uncomplimentary, calling the work "a real daub" ("une vraie tartouillade "). Another judge, Antoine-Jean Gros, thought highly of it, describing it a"chastened Rubens".