The sky, the girl, and the rock are all very similar, tonally. That's not a good thing or a bad thing, it's not like they get visually confused with one another. It does detract from the visual interest, I think. It's possible there's enough visual drama in the subject to cover that, not sure.
Her expression and body language is quite strange here, I don't know what to make of it. She doesn't look very happy with the photographer, for one thing.
Again, not a good thing or a bad thing, just an observation.
My reaction to the whole thing is pretty ambivalent. There's enough oddity in it to make me interested, somehow, but I find the whole thing sort of puzzling and off-kilter.