I'm no pro, but I do like the overall look. The skin on her face looks quite lovely in my opinion. I think you've adjusted the contrast nicely.
You may want to take a closer look at the model's arm. It looks as if you started to smooth out the freckles on her arm and decided not to midway through. Part of the arm smoothing has blurred the end of her hair. Additionally, where the hair is blurred on her arm, the skin color doesn't match the color on her upper arm that shows at her waist (sort of looks like she's wearing a glove of a different color skin).
Very cool picture.