Here, in the climax of the series, Taddeo creates his fresco on the facade of the Palazzo Mattei, the work that secured his reputation at the age of only eighteen. He paints while sitting on a scaffold, the Three Graces crowding around him. Two allegorical figures of Fame fly above. Below, the greatest Roman artists of the day admire Taddeo's facade. From left to right, they are Girolamo Siciolante (about 1521–1575), Daniele da Volterra (1509–1566), Michelangelo (1475–1564) and his servant Urbino, Giorgio Vasari (1511–1574), and Francesco Salviati (1510–1563).

Curator Julian Brooks describes Taddeo's triumph and the visual power of facade paintings.