This is a vintage-style illustration depicting a vibrant double rainbow arching over a lush landscape. The primary rainbow is bright and full, displaying the classic spectrum of colors. A fainter, secondary rainbow appears above it, with the colors reversed. Below the rainbows, a rolling landscape of green hills and dense trees stretches across the scene. The trees vary in size and shape, creating a textured foreground. In the distance, a mountain peak is visible, adding depth to the composition. The sky is a mix of pale blue and gray clouds, suggesting a recent rain shower. The overall style is reminiscent of 19th-century scientific illustrations, with a focus on accurate depiction and a slightly romantic aesthetic. The image is labeled 'LES PHÉNOMÈNES DE LA PHYSIQUE' at the top and 'PLANCHE XI' in the upper right corner. The artist's names 'E. Boujat pinx' and 'Digeon sculp' are written at the bottom left and right corners, respectively.