Love the sense of motion and the pose! Lovely splash of color too!! Two critiques I have are the choice of background (a little bland when you consider the subject), and the weird color cast on her outstretched arm (too dramatic a transition in color and exposure)
It's a good location and pose, and pleasant lighting, but something about the way the dress is flying is a bit unsettling to me. Maybe if it were whipping to the side, and not flying out of the top of the frame, it would work better?