Please note these type of images are done with HIGH RESOLUTION PHOTOS ONLY. The quality of the stocks used affects tremendously the final look of the design.
Here are examples of composite images I created using stock photography. These kind of manipulation designs are a great look on film posters, book covers, album covers, even magazine advertisements, etc. and can be designed using your own photos as well.
High quality manipulation/ retouching comes from knowing the tricks and tools that take a good image and make it great.