SUNGLASSES. H&M TREND (similar here).
FISHNET DRESS. ZARA.
Live the life you want. That's the thread that I follow through. Whether not the same as your friends, your background or your past - overcome that what is desired. Let's break it down... Though an invite reads a certain dress-code, adjust. Adjust to you. Wear that what suits you, comforts you and enlightens you. The dress-code is an addition, not the foundation. So as the invite reads formal, my dark and edgy style will never leave my side.
Obviously, choose your battles wisely.