Open the image of the rusty texture and place it into the image of the alien. To do this, choose Select > All then Edit > Copy. Close the image of the texture to go back to the alien image. Choose Edit > Paste to paste the texture as a new layer.

Change the blending mode to multiply then use the erase tool to erase the areas around the face so that the texture only affects the background.

Here is our completed image. We added more red abstract lines on the eyes using the same technique in step 9.
