Views of Venice at mid century, the 19th century, that is. All of these with interesting sky treatments. Ippolito Caffi, artist. Living from 1809 to 1866, his first works were produced at the Academy of Fine Arts of Venice. 

Venezia, veduta notturna con la Piazzetta San Marco e il Molo, con vista sull’Isola di San Giorgio. Undated, by 1866. Italian. Oil on paper, laid down on board. signed Caffi on the lower left. Image © 2021 Sothebys. Fair use license. via https://www.sothebys.com/en/buy/auction/2022/the-european-art-sale/venezia-veduta-notturna-con-la-piazzetta-san-marco
Snow and Fog on the Grand Canal. ca. 1840. Italian. Oil on canvas. Signed Caffi on the lower right. Image source: Web Gallery of Art. Collections of the Galleria Internazionale d’Arte Moderna, Venice. In the public domain in the United States because the artist died over 100 years ago. via https://commons.wikimedia.org/wiki/File:Ippolito_Caffi_-Snow_and_Fog_on_the_Grand_Canal-_WGA03744.jpg


Eclips of the Sun in Venice in July 8, 1842 at Fondamenta Nove. 1842. Italian. Image source flikr.com. Private collection. Artwork itself in the public domain in the United States because the artist died over 100 years ago. via https://commons.wikimedia.org/wiki/File:Ippolito_Caffi,Eclisse_di_sole_alle_Fondamenta_Nove(1842).jpg