Francesco Guardi – Louvre INV. 321. Title: The Doge of Venice Attending the Shrove Thursday Festivities in the Piazzetta. Date: c. 1775-1780. Materials: oil on canvas. Dimensions: 67 x 100 cm. Nr.: INV. 321 Source: https://www.flickr.com/photos/gandalfsgallery/13638348955/sizes/o/. I have changed the light and contrast of the original photo.
Francesco Guardi – The National Gallery (London) NG2098. Title: Venice: The Punta della Dogana with S. Maria della Salute. Date: c. 1770. Materials: oil on canvas. Dimensions: 56.2 x 75.9 cm. Acquisition date: 1906. Nr.: NG2098. Source: http://wallpapers-fenix.eu/full/141206/111140892.jpg. I have changed the light, contrast and colors of the original photo.