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Sky replacements are not an unusual request, and the technique can drastically improve the look of a photo. The trick is to choose a new sky that will fit nicely with the foreground, and elevate the overall final image. While the sky replacement in the example is the most noticeable change, the level of retouching goes beyond that alone. As you flip back and forth between the images, notice the removal of the "for sale" sign, the removal of other homes, the removal of distracting pipes and drains, and the adjustments to the windows to give them the appearance of interior illumination. In the example below, the sky replacement allows for an entirely new composition with much more area above the home, and less driveway below.
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