Etienne Le Rallic aka R. Fanny was a prominent French illustrator and realistic comic artist of the 1930s through the 1950s. Below are his illustrations from the 1938 novel La Volupté du Fouet (The Voluptuous Whip) by Armand du Loup.
La Volupté du Fouet is for sale here.
Smiles and Spanks, NaturallyGin.com