Feather flowers are going to be the stars of 2013. There are some amazing designs out there already that include organza or silk with Swarovski detailing and a feature vintage Marcasite or crystal brooch. Look out for the Coq feathers!
Single, larger blossom flowers, such as roses, carnations, zinnias, tulips or lilies, usually make up the focal points of a piece. Taller stems with multiple flowers can balance things nicely. Delphinium, gladiolus, and snapdragon are good examples of flowers that can add extra height and texture. "Filler" flowers, or stems with many small buds, are great for topping of a bouquet with a full and delicate look.