It reminds me of some other photos, I think they were in a TV commercial. They might have been Canon ads. Or Nikon. I forget.
Anyway, your photo looks like the foreground was all rocks and the model lay down with her feet up, and in the background there is rapids and a forest. But for some reason, the photo is rotated 90° CCW. I rotated it, and discovered a crow! Or a raven, how do you tell the difference between those birds? Blending the foreground and background shot worked really well. But, once rotated, Christina looks uncomfortable.