Double Exposure Portraits by Antonio Mora Spanish artist Antonio Mora does women and men’s portraits in double exposure of natural elements& waves, moutains’ landscapes or animals and plants come juxtaposing on the models’ faces.
Self portrait ideas Mapping 2013 on Behance Use a process like this for "identity/self-concept" activity about skin color/shade/tone/palette. Put vertical photo strip of every child together on a couple images to make a collective face.
Multiple Exposure Series by Simone Primo. I like these pictures because they cleverly join two pictures together. Because the pictures are in the shape of a person, the picture inside could be representing emotions/feelings.