Excellent use of lighting in this image, and I can see you made good work of a reflector! You've illuminated the subject with an ethereal glow and I applaud you for this fantasy look in an urban setting. It's a nice contrast with her simple nearly-sheer dress to see that thick, metal chain behind her. It's an interesting look! And kudos to whoever was the driving force for the hair and makeup on this shoot because it is great! All of these elements combined along with your cropping this to a square (and focusing on that brilliant blue eye of hers!) makes for a really successful image.