I like it. I think you did a really good job changing and enhancing the colors in a way that's natural but makes a huge difference. The only thing that really sticks out to me is that while you did tweak most everything else, you left the eyebrows the same as the original, so now they blend in a lot compared to the original because of the new skin color. I would make them blacker and higher contrast so that they stand out from her face as much as they do in the original.
Oh, and I wouldn't have removed the freckles on her neck, but I suppose that's more of a stylistic choice.