The Flemish painter Simon Denis is one of the rediscovered pioneers of European plein air painting. Trained in Antwerp and Paris, he traveled to Rome as early as the late 18th century, where, fascinated by the Italian landscape, he devoted himself entirely to creating spontaneous oil sketches outdoors.

His large-format, masterful study of two trees from the Fondation Custodia in Paris impressively demonstrates why these early works are now regarded as revolutionary milestones. With a frame that is unusually tight—almost photographic—for the late 18th century, Denis places a group of trees standing at the edge of a hill at the center of the composition and renders the background as an almost monochromatic expanse, thereby presenting classical precision in an exceptionally modern way.

Instead of staging the trees as purely decorative elements in a heroic ideal landscape, Denis approaches the subject with analytical precision. The primary focus is on the study of light and texture: the warm, golden sunlight refracts through the treetops, sculpting the three-dimensional masses of leaves and making the dense interweaving of the branches literally glow.

The work’s extraordinary size brings it close to that of a finished painting, as if intended for the Salon or a museum. However, the unpretentious natural scene and the unfinished painting style in the foreground identify it as a study. It is precisely in this liminal space between representation and intimacy, between impact and the nature of a study, that the appeal of this extraordinary work of art lies, one that establishes Denis as a master of his craft.