Of all the skills needed in doing High End Retouching, (or "Finishing" as they call it in the movie poster biz), masking is among the most basic and essential. When combining several images together a mask is used to determine what parts of the image are kept and which are not seen so the quality of your mask will have a big effect on the final image.Think of it this way if you were going to add this

Recently Dennis created a series of images with photographer Richard Radstone featuring surrealistic scenes representing different regions in Colombia. This image spotlights the Magical Land of Bucaramanga where Lollipop Trees meet up with friendly Alien Moss Balls while passing bicyclists stop to read their favorite science fiction stories.The work on this image began with Pre-Production meetings