A wonderful example of environmental portraiture. A strong classic rule-of-thirds composition with well contrasted relation between the subject and background. Well timed to make the best use of the low angle golden natural light that is not too overpowering and allows for a very nice exposure even in the shadows.
The shallow depth of field works well to isolate the subject and keeping the out of focused area in the foreground gives the image a real feel of depth. The styling of the subject is feminine and sexy without being overtly so. The three quarter angle gives it a more candid feel than a face on portrait would.
The only thing i think that might make it stronger would be if the hair was covering just a bit less of the model's face. Other than that, an excellent image showing solid technique and artistry.