Greenery is going to begin to hide the "V" shaped pattern of this hand tied flowers. Continue adding to the bouquet in the same manner, however, always crossing additional flowers and greenery while you turn the bouquet.
From now on, it becomes a pattern, rotating, crossing the rose, myrtle and tree fern, and taping into place.
You'll see how the greens begin filing out the empty spaces, giving a glossy contrast to the dark red of the roses.
By now you'll begin to enjoy the freedom of only having to hold the bouquet between two fingers, rather than gripping tightly with one hand, attempting to hold all the flowers in place.