This is the most difficult step for me to describe. Why? Because for me it's all trial and error. The trick is to know what commands are available, and what they do. It takes a lot of patience to get this step right, and some people just don't have an eye for it. Unfortunately,the color will make or break an image real quick. The commands I use most (located under IMAGE>ADJUST): Levels - Adjusts hilites and shadows. Color Balance - Adjusts the mixture of colors in a color image. Brightness/Contrast - Adjusts the tonal range of the image. Hue/Saturation - Adjusts the hue, saturation, and lightness of individual color components in an image. What I recommend is to try each command and get a feel for how it works, and what it does, and just wing it. I highly recommend saving your image before you do this, in the event you really mess up the color. NOTE: Make sure you are not in mask mode when you do color matching. To do this, hit the little thumbnail of the image in the Layers window.This is how you switch from mask mode. Hit the mask thumbnail to return to mask mode.