Wow, this is really stunning!
Very photorealistic, especially her contours, fingers and feet.
I think the only thing that kinda looks a bit off is the boulder?
But I think that is because of the shadow that looks like it is missing, but actually is behind it due to sun/shadow direction.
I just remembered the first picture of yours I saw: You sitting on a motor bike.
Same awesome and realistic materials/lighting and colors. But I think you even improved since then when seeing her skin and accessouires.