Acis   and  Galatea.

Acis and Galatea — the myth of the Sicilian sea nymph and the shepherd Acis, whose love was brutally ended when the jealous Cyclops Polyphemus crushed Acis under a boulder, transforming him into a river — was a lyrical subject that invited paintings of tender pastoral intimacy shadowed by impending violence. De La Fosse's undated canvas, at the Musée d'Art de Toulon, draws on the rich tradition of treatments that stretches from Raphael's Vatican frescoes to Poussin and Claude. The Acis and Galatea theme was particularly popular in French aristocratic culture during the late seventeenth and early eighteenth centuries because it combined pastoral elegance with mythological authority. The Toulon museum holds a significant collection of French and Mediterranean paintings accumulated across several centuries, and de La Fosse's canvas represents his mythological work at its most characteristically lyrical.

The pastoral setting — sea coast, rocks, and open sky — provides de La Fosse opportunity to demonstrate his landscape painting alongside the figures. The tender reclining posture of the lovers creates a horizontal compositional axis contrasting with any vertical indication of the lurking Cyclops threat. Warm Mediterranean light suffuses the scene.