1) The gorgeous dress
2) The dark background with the clouds that look like it'd storm any minute
3) There's this great mix of colors that the other books didn't have
My only dislike is that the cover is all I can stare at until the book is released. A little quote from the publishers about this book, "Before Luce and Daniel met at Sword & Cross and fought immortals at Shoreline, they lived many lives. . ."