If you look at the Pic. you will see many things. Whatever, you will immediate understand, that the center of attraction is the girl. The person who made it did not want to be seen. Seeing the Pic as a Portrait, I will call it aa amateur shot. But as a spy, it is a good one. and that is the way i look at it.
You said this is a nice shot. Could you tell me what you see?
I see a cluttered image, with alot of distracting elements. The girl blends into the background. Compositionaly, there is too much space on top, the subject almost has her eyes closed. I almost see just a head floating in space.
There is nice tonality, but that's not enough to hold this image together.