Jacob van Ruisdael – Detroit Institute of Arts F82.94. Title: Landscape with a Watermill. Date: c. 1680. Materials: oil on canvas. Dimensions: 42.5 x 61.6 cm. Inscriptions: JvRuisdael (JvR conjoined; lower right). Nr.: F82.94 Source: https://www.dia.org/art/collection/object/landscape-watermill-60044. I have changed the light, contrast and colors of the original photo.
Jacob van Ruisdael – private collection. Winter Landscape with Windmill and a House in Scaffolding (c. 1665-1680)
Materials: oil on canvas. Dimensions: 39.4 x 43.8 cm. Inscriptions: JvRuisdael (lower right). Source: https://commons.wikimedia.org/wiki/File:Jacob_van_Ruisdael_-_Winterlandschap_met_molen_en_huis_in_aanbouw.jpg. I have changed the light and contrast of the original photo.