I want to say, first and foremost, that your repaint skills are amazing. I love how you did her hair (there is so much depth in the color - it's obvious you paid attention to every little strand you placed). I had fun switching between the enlarged version of this and the original model stock to find the differences.
I do just have a couple of suggestions though, in regards to the lighting/shadowing. The first is to put a little bit of shadow where her hair sits over her skin, just to add a bit more depth. The second is to darken her skin a little on the right side; given the rest of the scene, she seems a little over-bright.
This manip is wonderfully pieced together. I love how well you blended the model with the foreground. And despite the warm colors and light, there is a chill to the mood. You did a great job overall.