Professional florists would categorise the styles of flower arrangements as such: Traditional, oriental and modern flower arrangements. Traditional flower design, also known as Western flower arrangements, is the time_honoured common flower arranging style where the design is enriched with a large number of beautiful, colourful flowers. Apart from the vase in which the flowers are arranged, almost no other accessories are used in this flower style.
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.