Meindert Hobbema – private collection. Title: Bewaldeter Dünenweg mit einem Gehöft. Date: late 1650s. Materials: oil on panel. Dimensions: 61.7 x 93 cm. Inscriptions: M. Hobbema (lower right). Sold by Koller International Auctions in Zürich, on September 28, 2018. Source: https://www.kollerauktionen.ch/CatCache/catcache.1/pictures/458690/458690_l_1.jpg. I have changed the light and contrast of the original photo.
Johann Jakob Frey – private collection. Title: View of Rome as Seen from Monte Mario. Date: 1850. Materials: oil on canvas. Dimensions: 98 x 135 cm. Source: https://s017.radikal.ru/i438/1603/10/a2a6bcc79a98.jpg. I have changed the light, contrast and colors of the original photo.