Damn. This is gold. Perfect conversion, the light highlighting her face is gorgeous, great model. I love the composition and how the railing(s) lead your eyes upon second glance to her hands/gloves.
I think it would be very impressive if you cropped almost to her waist, so the railing diagonals would make a nice design. Crop a little off the top, too.
I don't know where you found such a neat location with such a unique railing, but good job on taking advantage of it with her pose. This is quite dramatic, and I like it!
There is one minor quibble though; that ray of light you have there, it's quite obvious to my eye that it's a photoshop gradient mask. It has that look. I would personally break up that perfect straightness a bit with some manual brush strokes.
Otherwise, I'm liking this and I envy anyone who can do a model shoot out on location! It takes alot of effort to make it work.
I don't deny that the ray of light is artificial, Dubious. I kind of like that it looks fake; it brings ambiguity to the image. Making it look like a "real" ray of light would be equivocal, and I hate that