I like the background, and the processing does give a very 1970's, dreamy,ethereal look and feel to the photo. Her simple hairstyle, simple clothing style, minimal jewelry, and her blue eye shadow all give a very "70's look". I just wish you'd have swung the camera a little to the left,and lowered the angle of view, to position her more centered; the composition feels odd and the cropping of her bustline kind of spoils the overall effect, IMHO.