It is worth looking into the dome, which has a set of eight frescoes in a charming and rather naïve style, featuring angels playing musical instruments. These are separated by wide ribs in molded and gilded stucco. The pairs of ribbed Corinthian pilasters separating the windows in the drum echo the exterior design. These frescoes, and those of prophets on the pendentives, are by Francesco Rosa and Vincenzo Pasqualoni.