Double exposures are created in Photoshop with a few simple steps. The first step is to get your images. You need one profile view and 2 or more pictures to put inside of you. Then you load it into Photoshop and make the area around your face completely white. When you are done with that, you can put one of your images on top of the profile view of you and change it to screen mode. Screen mode usually works really well, but if not you can try some of the other ones to see how well it is. Then you can add your other pictures and also make it screen so that it looks like the opacity is low. Then when you are done fitting all your pictures nicely, you can crop your image to exactly how you want, and save it. It's really interesting to make because of how original you can make it. You can put whatever it is you want in your head.
For my example, I used a picture of a small waterfall at Lumahai beach. I used that picture because of I love waterfalls and the beach, so that picture fit me perfectly. I also used a picture of a bunch of plumeria flowers. I used that picture not only because of the fact that I love flowers, but because of the color in it. The bright yellow in the flower kind of symbolizes how happy I am when I am with my family and friends. I loved the outcome of my work but to improve it, I could have added more effects to my images in my face.
Practice:
Final: