"First, the bad news: 99% of all customer complaints about printing are related to skin tones. And it's the subject most likely to make photographers weak in the knees. Now for the good: Unlike expressions and poses, which are a matter of taste, there's a simple way to measure skin tones and feel confident they're safely in range. You're probably shocked to read that headline from the company that provides calibration prints & ICC profiles — and takes pride in offering a True Color option, which printers like Ofoto don't offer. When it comes to skin, however, it's about a pleasing tone. The customer wants to look good and she's allergic to red." This is a very interesting article about adjusting images for more pleasing skin tones - if you're using an online photo printing service, or even printing at home, it's definitely worth checking out!