Focus on The Prophet Isaiah (Raphael) and explore the Michelangelo influence.
Much comparison is made of the Raphael fresco Prophet Isaiah to the work of Michelangelo, Ernst Gombrich going as far to suggest that Michelangelo may have hired Raphael to work on Ezekiel for the Sistine Chapel, which he believes is much more reflective of Raphael than of Michelangelo.  This would have allowed Raphael to both gain influence by Michelangelo and also contribute to the decoration of the Sistine Chapel.Within the Prophet of Isaiah, noted influences by Michelangelo include:similarity of figural composition
self-enclosed situation of Isaiah
the manner in which the scroll is held, in a spiral formula as evolved by MichelangeloLegend has it that Corycius complained to Michelangelo that he had been overcharged for the fresco, to which Michelangelo responded, "the knee alone is worth the price demanded."
Raphael Isaiah Michelangelo Prophet Ernst Gombrich fresco Ezekiel