My fiance and I are scheduled for our engagement session in about a month. For our formal outfits, I am wearing a navy gown and he is wearing a white and blue pinstripe shirt with navy slacks. Because he's not wearing a suit, I am of the opinion he should wear a tie so that I don't look too formal and him too casual. However, I don't know if him wearing a navy tie will be overkill. I found a picture of this ensemble online and it looks fine, I just don't know if we'll look too matchy since I'll also be wearing all navy.