This outfit is stunning on you, and the pearls and silver sandals are perfect for wearing to a wedding. I was also admiring the way you tied the pearls--such a creative touch and very flattering on you. Your hair is gorgeous, too.
I like a lot of the ideas you've received for pairings with orange. I do like turquoise, although I confess it always makes me thinks of Howard Johnsons motels (ubiquitous on the highways during family trips as I was growing up)! That wouldn't keep me from wearing the combo, though.