What I like about this picture is its mood, you can feel there's some storm there, those little bits flying there and as a result wind doesn't seem forced. I don't know if it was intentional but it's impossible to tell where the actual ground is so that gravity could pull her to it - that leaves viewers feeling free fall.
One thing catches my eye in a negative way: her hair. I like the way it's flowing, and I like your choice of colour (red heads ftw ), however, it doesn't really blend in with everything else. Since this image has major blue tone, it should've affected her hair as well, her is rather reflective.
And this is just personal preference. Perhaps a liiittle bit more lighting to make it more effective (not that's optional, really).
Keep up the good work I hope my comment was useful at least a bit