I'm curious about the not using shampoo anymore. Do you plan on only washing your hair with water in the future or will you replace shampoo with something else?
I love Mystic Heather, probably the best shade I've ever tried
And about the wedding. If you use a very light pastel shade then maybe you could put some flower clips or a headband or something kitschy like that in your hair to give it a more romantic look? I'm sure there's a way to make candy colored hair look sleek and elegant, it's definitely much more wedding appropriate than a bolder color.