Women wandering in an Art Nouveau sea. Posters by Belgian artist Henri Privat-Livemont (1861–1936).

"La Vague"  (The Wave). 1897.
“La Vague” (The Wave). 1897. Lithograph. Collection of the Zimmerli Art Museum at Rutgers University, New Brunswick. In the public domain in the United States because it was published before January 1, 1924. via https://commons.wikimedia.org/wiki/File:Henri_Privat_Livemont_-_La_Vague_(The_Wave)_-_Google_Art_Project.jpg
"Casino de Cabourg," part of the 1896 series "Les Maîtres de l'affiche."
“Casino de Cabourg,” part of the 1896 series “Les Maîtres de l’affiche.” 19th c. In the public domain in the United States because it was published before January 1, 1924. via https://printmasterpieces.com/products/cabourg-henri-privat-livemont-les-maitres-de-l-affiche