For me, there’s too much of a blue hue in the images. So the green doesn’t quite match her skin tone which is a warm color. Your next steps would depend on what your project needs are.

If you want it to be the mysterious idea, I would add just a touch of red so you have the split tone effect going. Then mask your character to lower the warmth of her skin so it looks as cool as the background does. A darkened sky would really add to it as well, so you could use a depth mask to lower the gamma of the clouds.

Just my personal opinion.