Salomon van Ruysdael – Rose-Marie and Eijk van Otterloo Collection. River Landscape with a Sailboat (1655)
Materials: oil on canvas. Dimensions: 35.6 x 40 cm. Source: arthistoryreference.com/la/9859.jpg. P.S. I have changed the contrast of the original photo.
Jan van der Heyden – Rose-Marie and Eijk van Otterloo Collection. View of the Westerkerk (c. 1667-1670)
Materials: oil on panel. Dimensions: 53.5 x 64.2 cm. Source: http://cheznamastenancy.blogspot.ro/2011/07/masterworks-from-dutch-golden-age-at_12.html. P.S. I have changed the light, contrast and colors of the original photo.