During a recent Member’s Minis Andy gave a presentation on how to add drop shadows into your images using PhotoShop.
During his presentation Andy demonstrated adding simple drop shadows as a way make your image look as if it was a print on a background.
Then he used a similar technique to combine 2 images into a composite with realistic shadows under and to the side of the main subject with a colour tone to pull the images together.
You can review Andy’s presentation, including the list of shortcuts used by downloading the notes from here.