Sistine Chapel ceiling of God, impassively watching and waiting on the fate of Humankind. Their painting demonstrates, more than any other figures on the ceiling, Michelangelo's mastery of anatomy and foreshortening and his enormous powers of invention. In their reflection of classical antiquity they resonate with Pope Julius' aspirations to lead Italy towards a new 'age of gold'; at the same time, they staked Michelangelo's claim to greatness. However, a number of critics were angered by their presence and nudity, including Pope Adrian VI who wanted the ceiling stripped. Michelangelo was the artistic heir to the great 15th-century sculptors and painters of Florence.
Sistine Chapel layer of animal glue and "lamp black", all of the wax, and all of the overpainted areas were contamination of one sort or another: smoke deposits, earlier restoration attempts, and painted definition by later restorers in an attempt to enliven the appearance of the work. Based on this decision, according to Arguimbau's critical reading of the restoration data that have been provided, the chemists of the restoration team decided upon a solvent that would effectively strip the ceiling down to its paint-impregnated plaster. After treatment, only that which was painted "buon fresco" would remain. The only reproduction of the Sistine