Tiemen Rapati downloaded 500 of her self-portraits and created this beautiful composite image by finding an average RGB value for each pixel and dividing it by the total number of portraits. (Whaaaaaat.)
"Artist Corinne Vionnet created these pictures of famous monuments... Well, she sort of ...She made these from actual tourist photographs. There are between 200 and 300 photos carefully pieced together on each one of these to create this look..."
Maura Murnane's Photoshop Art, A Surreal Take On The Fashion Industry
Murnane created the images by writing an action in Photoshop that takes retouch layers and places them in separate files (for example, “skin” in one file, “garments” in another). Then she combined and segregated the layers variously on the photos’ original backgrounds.