Since the sky will be doubled in your picture, make sure it’s beautiful before you start. This photo had a very bright spot on the top left portion of the sky that we used the Healing Brush to remove. Likewise, before you create your faux reflection, make sure you like everything about the image exposure and color tones. When your photo is at a good starting place, grab the rectangular Marquee tool and make a selection around the whole top section of your image.