Sometimes a photo has the ability to make you stop, stare, and admire what has been created. Sometimes its the composition, sometimes its the location, and other times it is just the over all subject matter. On that rare occasion it is a subtle combination of all aspects that come together in that one perfect shot. In my career as a photographer I have had that combination twice that I can think of. I have made a profit and gained prestige in these photos. YOU my friend have done just that here. Your model is stunning of course but its way more than that. The lighting in her hair, the dreamy look on her face, her pose, her make up, location.....There really isn't anything you could do different on this photo to make it better. I think you have found nirvona and I am glad to view it.