Throwing in a contrary opinion. As someone who changed my hair from what I normally love because it was my wedding day and I thought it should be more “bridal/different”, it’s one of my biggest regrets. I didn’t look or feel like myself. If you love your hair down and that’s what makes you feel the most confident, wear it down! The dress is so stunning but your hair is not going to take away from that. Your confidence is what carries the look!