Creative choices here. I like that you moved in tight, I like that you saw it and pushed the button despite the backdrop being out of place. The cracks and patterns of the pool wall and bottom actually resonate well with subject's lines -- for your future reference I guess -- worth trying some without the backdrop. Here, the misplaced backdrop still works in the composition, because it mirrors her hair. This has a sensual, rough, 50's stag magazine feel to it. I like it, but then, I'm the close up guy, so no surprise.