this shot is displayed within the fourth environmental exhibition of the Documentary and Photography team in Kuwait from 5-8/6/2007 No photoshop :) this technique is named Image Overlay from Nikon cameras u can mix two RAW files together and produce a JPG
the best way to do it is u should have a series shots of the moon in all the direction ( left - right - middle ... ) they should be RAW files , then u can choose which is the best position u should select and remember to take the moon shot at night because the image overlay will cancel any black color and also from the camera u can select how clear the second image is
hope u like it and i don't know if Canon have the same option so i advice u to convert to Nikon :) it is just a joke