Step 2: Change Eye-shadow Color
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Set the Lasso tool with a generous pixel feather (this will depend on the resolution of your file— I used 15) and make a loose selection of the eye shadow color. With the selection active, create a Hue/Saturation Adjustment layer, then move the sliders until you like the color better. Here, I made the Hue cooler, desaturated slightly, and darkened the tone by moving the Lightness slider down to –7.