This chapter takes an in-depth tour through the chapel, scrutinizing first the painted relief system of the entire space, the doorways, the west wall’s Last Judgment, and the Virtues and Vices with their washed-off polychromy. A detailed discussion of the stories of the Lives of Mary and Jesus will then be followed by an analysis of the chancel arch, the coretti, and, finally, the fictive broken double vault with its starry sky. The focus is upon specific classicizing or Romanizing elements on the one hand, and the significance of optical relief on the other. This shifting of gears, precipitated by an integrated analysis of different parts of the system, is a process of calibration – adjusting a system’s range and aspects according to their own standards.