Landscape with Cattle and Sheep. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652066/image-vintage-art-public-domainFree Image from public domain license[Constant] Troyon, peintre paysagiste by Nadar Gaspard Félix Tournachon https://www.rawpixel.com/image/14271387/constant-troyon-peintre-paysagiste-nadar-gaspard-felix-tournachonFree Image from public domain license