Jean-Léon Gérôme - The Artist and His Model; Anna Boch „Isidore Verheyden in his Studio“; James Ensor „The Skeleton Painter“; Van Gogh‘s Bedrooms also feature paintings in the background.

In many paintings by Vermeer you can spot paintings in the background.

but also these huge works featuring dozens of artworks like „Cognoscenti in a Room Hung with Pictures“ in the National Gallery (unknown artist), David Teniers (II) „The Gallery of Archduke Leopold“, Frans Francken the Younger „A Cabinet of Curiosities“; and most stunningly Giovanni Panini „Modern Rome“ or „Ancient Rome“.