I use GIMP and I have worked on the background and lightened her eyes and sharpened them abit. I don't know how to fix the skin tones or anything else really. Any tips would be great. The first is the original. The second is what I have done so far. I am using this photo to work with to improve my skill in PP. I am especially not happy with the way the skin tone was captured. Also the flare in the sky. But her skin tones are what I am trying to figure out how to fix, the most.