Victorians

The background of this image has two Lautrec paintings ("Ball im Moulin Rouge" and "Ball im Moulin Rouge (La Goulue uns Valintin-le-Désossé)") meshed with two photographs of Sanctuary at the Red Room this past weekend. Just try and determine where the Moulin Rouge stops and Sanctuary starts. Which of the blurs on the dance-floor lived in the 19th century and which live in the 21st?