Awesome job! This picture if definitely in my top 3 of your works!
The color scheme, pose and textures are really coming together nicely.
Although I imagine it ain't easy to keep the proportions drawing this angle, I (maybe) found one flaw:
By comparing the right leg to the left one, the right calf seems a bit narrow on the right side, right before the picture ends. It looks more a part of her foot than the the massive calf on the left - but maybe it's just me.
This pic goes straight on my desktop as a wallpaper! Keep it up! :)