Nine Muses and their divine patrons — Athena and Apollo.
Athena leaning against an oil-tree stands in the center of composition. She wears a helmet and holds a spear. Her aegis is seen by her feet. There is a snake on the tree and an owl on the ground near the goddess — her attributes symbolizing her wisdom.
A naked figure of Apollo Musagetes is the last on the right. A small Gryphon — winged mythical creature whose rider was Apollo — sits on the ground by the god.