Really lovely looking lady, spectre. Subtle... Id say keep the base textures as light as possible and use MAT files to create darker tones changing just the skin colors. I havent tested this myself yet, but i think basic light greytones for the irises and MAT files for the colors will work too. And I think that freckles and other natures mishaps on a face gives it extra charme. Maybe a 2nd texture or a layered PSD? A lot of beautiful faces are beautiful BECAUSE they are not flawless... Maxx :-)