When you first look at this painting, you imagine it as two women set against one scene. But then you notice the frames in the picture are a little off and wonder if there's some Photoshopping or digital manipulation going on but nope, there's none of that either. It's just clever use of double exposure in film photography. A perfect blend of combining two pictures into one.
The photograph, taken by Redditor Thor86, just uses film to pull off the trick. I love photo trickery using old analog methods.