How to create a cracked face on Photo Shop.

 1. Select your image and a cracked looking background. Drag the background onto the photograph and make it fit on.

 2. Lower to opacity of the cracked background to about 50%.

 3. Change the normal mode into multiply.

 4. Create a layer mask onto the cracked background.

 5. Use the paint tool to go over any areas which you do not want the cracks to be on.

 6. Change the levels of the background so that the cracks look darker and there is some shadow on the persons face.

7. Your final image should look like this.