Perseus and the Origin of Coral by Claude Lorrain. French, c. 1671 Metropolitan Museum of Art.

From the Met:

The rarely depicted subject of “Perseus and the Origin of Coral” is derived from Ovid’s Metamorphoses. This drawing is one of seven known preparatory studies for one of Claude’s most important late paintings: Coast View with Perseus and the Origin of Coral (Coke Collection, Holkham Hall, Norfolk), four of which depict the entire composition. The painting was commissioned by his patron, Cardinal Camillo Massimi, and executed in 1674.