Paintings of horses. Having your horse painted the way you would get a professional photograph of your cat used to be very fashionable. John Nost Sartorius, British artist. Living from 1755 to 1828, he was the son and grand son of horse artists.

“A Close Finish.” Undated. British. Oil on canvas. Image © CHRISTIE’S 2020. Fair use license. via https://www.christies.com/lotfinder/Lot/john-nost-sartorius-1755-1828-a-close-5640725-details.aspx
“The Earl of Darlington Fox-Hunting with the Raby Pack: Full Cry.” 1804. British. Oil on canvas. Inscribed Inscribed “J N Sartorius pinxit 1804” on the bottom left. Collections of the Tate Galleries, London. Cc0 License 3.0. via https://www.tate.org.uk/art/artworks/sartorius-the-earl-of-darlington-fox-hunting-with-the-raby-pack-full-cry-t02370
Captain O’Kelly’s “Eclipse”. 1780. Oil on canvas. Collections of the Auckland Art Gallery, Auckland. In the public domain because the artist has been dead over 100 years, via https://commons.wikimedia.org/wiki/File:John_Nost_Sartorius_-Captain_O%27Kelly%27s%22Eclipse%22_-1933-1-2-_Auckland_Art_Gallery.jpg