Wow! Absolutely beautiful! With a dress this lovely and seeing you in it, regarding the hair and veil, (this is just my opinion and I don't know you) maybe think simple? Anything else might look like you're trying to hard to compete with what is already perfect. I love the back of the dress, and the long line of buttons. You'll probably be spending much photography time in the reception with the back wrapped to loop on your wrist, and walking up the aisle to show it off with elegance and grace might work. Once fitted, you should have someone take video of you walking away from the camera to see if it works (if that makes sense). When is the wedding? Oh, and congrats!!!!!