It must have been after seeing them from the floor of the chapel, by removing some of the boards of his scaffolding, that Michael Angelo determined to alter the scale in the remaining compositions.

In no other way can we account for the change in the size of the Athletes, at any rate.

The difference of scale between those surrounding the Sin of Ham over the large door, and those surrounding the separation of Light from Darkness over the High Altar, must be almost two feet.

The increase is gradual along the ceiling.

Similarly the Sybilla Delphica is very much smaller than the Sybilla Lybica, and the Prophet Joel than the Prophet Jeremiah.