Create a Mirror Effect.

This is an easy one to create. The hard part is finding a portrait image with a not too busy a background, as you will need to remove the right hand side. (That could be all or part - see below).

For this exercise I Googled - "Images of Faces Looking at The Camera", as I need a full on camera face.

1/. Find your image and take note of it's size.

2/. File New Transparent - the same size as the original image.

3/. Copy/Paste your original image to the new file.

4/. Carefully remove the background on the right hand side.
After evaluating the second image of the girl, I decided to leave a small piece of blue sky at shoulder level, to make the join smoother.

5/. Now File/New - four times the width of your original image, but the same height.

6/. Copy/Paste the original image onto the new larger one.

7/. Using the Move Tool place the image to the far right of the document.

8/. Now Copy and Paste the edited image in and joint it with the original image. This will be in a new layer. Then repeat the Copy/Paste process three more times. This will create an additional three layers.

9/. Using the move tool after selecting each layer, move the images in. What you now have is a well blended four up of the one image - all mirrored.