The image is a vintage illustration depicting a vibrant double rainbow arching across a hilly landscape. The primary rainbow is bright and distinct, showcasing the classic colors of red, orange, yellow, green, blue, indigo, and violet. A fainter secondary rainbow appears above it, with the colors reversed. The landscape below is composed of rolling hills covered in dense, dark green vegetation. Trees of varying sizes and shapes dot the hillsides, creating a lush and natural scene. The sky is a muted blue-gray, suggesting a cloudy or overcast day. The overall style of the illustration is reminiscent of 19th-century scientific or natural history illustrations, with a focus on accurate depiction and detailed rendering. The image is labeled 'LES PHÉNOMÈNES DE LA PHYSIQUE' at the top and 'PLANCHE XI' in the top right corner. There are also artist signatures 'E. Roujat pinx' and 'Digeon sculp' in the bottom left and right corners respectively.