Just the plasterwork gets interesting in places. The male figures look more like Neptune or a genii than anything from Christian mythology.

In fact, some of them make you wonder what, if anything, they have to do with the Vatican.

In some cases, the answer is clearly nothing, as in these little birds that form part of the frame for a larger piece.

The birds are a repeating theme in this hallway, in fact.

In other cases, the paintings clearly depict some biblical story or another, although sometimes in surreal ways. I think the dragon-like creature on the left is actually a camel.

I simply liked this one, with its impressionistic pastoral landscape and tiny group of travelers in the foreground.

Another detail from the frame.