In his earlier style, founded sometimes on Caravaggio and sometimes on the wholly diverse method of Correggio, the study of Spanish and Venetian masters may be traced. Along with his massive and predominating shadows, he retained from first to last a great strength in local coloring. His forms, although ordinary and sometimes coarse, are correct; the impression of his works gloomy and startling. He delighted in subjects of horror. In the early 1630s his style changed away from strong contrasts of dark and light to a more diffused and golden lighting, as may be seen in "The Clubfoot" of 1642.