People dressed in all manner of costumes but looking 19th century anyway. Paintings of the Academic School by French artist Alexandre Cabanel (1823-1889). Studied at the École des Beaux-Arts in Paris. One of Napoleon III’s favorite painters.

Alexandre_Cabanel_Phèdre
“Phèdre.” 1880. Oil on canvas. Collections of the Musée Fabre, Montpellier. In the public domain in the United States because the artist has been dead over 100 years. via https://commons.wikimedia.org/wiki/File:Alexandre_Cabanel_Ph%C3%A8dre.jpg
Alexandre_Cabanel_-_The_Evening_Angel
“The Evening Angel.” 1848. Oil on canvas. Collections of the Musée Fabre, Montpellier. In the public domain in the United States because the artist has been dead over 100 years. via https://commons.wikimedia.org/wiki/File:Alexandre_Cabanel_-_The_Evening_Angel.jpg
Alexandre_Cabanel_-_Death_of_Moses.jpeg
“Death of Moses.” 1850. Oil on canvas. Collections of the Musée Fabre, Montpellier. In the public domain in the United States because the artist has been dead over 100 years. via https://commons.wikimedia.org/wiki/File:Alexandre_Cabanel_-_Death_of_Moses.jpeg
r_m2014_9
“Saint Monica in a Landscape.” 1845. Oil on canvas. Collections of the Milwaukee Art Museum. Photo credit: Jack Kilgore & Company Inc. Image © 2020 Milwaukee Art Museum Blog. FAir use license. via https://blog.mam.org/2016/10/04/from-the-collection-a-pair-of-paintings-by-alexandre-cabanel/