Sistine Chapel ceiling picture is crowded with figures and separate incidents as the various individuals who have been attacked by snakes struggle and die or turn toward the icon that will save them. This is the most Mannerist of Michelangelo's earlier compositions at the Sistine Chapel, picking up the theme of human distress begun in the "Great Flood" scene and carrying it forward into the torment of lost souls in the "Last Judgement", which was later painted below. Between the large pendentives that support the vault are windows, six on each side of the chapel. There were two more windows in each end
Illusionistic ceiling painting sotto in sù". This was the prototype of illusionistic ceiling painting that was to become an important element of Italian baroque. Correggio at Parma took the illusionistic ceiling a step farther in his frescoes of Christ and the Apostles for the cupola at the San Giovanni Evangelista and in the "Assumption of the Virgin" in the dome of the Cathedral of Parma, which is Correggio's most famous work (1520–24); in these frescos Correggio treats the entire surface as the vast and frameless vault of heaven in which the figures float. In a visual continuity between the architectural interior and its