You could create an arrangement for any size vase, the larger the vase, the more flowers and greens to use. For Christmas time, use red, white and maybe even green flowers (like green button mums). Also choose from a variety of greens and evergreens out there. Accent a red rose in a bud vase with some baby's breath and cedar. Deep red alstroemeria are especially beautiful. There are many other flowers that would be perfect to use for Christmas arrangements, the link below will take you to a complete list of flowers, foliage, and evergreens for Christmas floral design.
Modern flower arrangements are the aesthetic use of clean, sleek lines, but generally all the styling depends on the likes and dislikes of the designer. The design of such an arrangement does not follow the traditional outline of arranging flowers. Instead the use of different accessories is combined with the minimal use of bright flowers. Modern flower arrangements make use of ornamental geometric motifs and clean_lined containers to carry the geometric theme through into everyday life.