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I like to combine people from one photo with the people in another, but the differences in skin tone usually make it obvious that the final picture is made up of other photos with different exposures. I can be white like I've never been outside before in one photo, or very tanned in another. How can I can combine the two so it looks like twins with the same coloured skin and amount of tan? Roy Please keep it as simple as possible. I am a beginner.