Here’s a long exposure one of my travel companions took of me on a vineyard tour. I cloned some flowers from a bush behind me over my blurry eyes, darkened my nose-stache line, converted it to B&W for color and light balancing, then cropped it to a medium-close shot[, and finally a tight-close shot using my hair to simulate vignetting]:

We went to see the Musée de la Photographie in Mougins which has a permanent André Villers collection. Some of his work with collage and multiple exposure-self-portraits is brilliant.