That is gorgeous fabric. Lately I'm hooked on rose fabric. I bought some Rose Whispers fabric by clothworks but can't find any more. This is very pretty, what is it called?
A lot of great suggestions and have fun picking a pattern, but when I saw it thought of the log cabin block. Then I read all the comments and suggestions and good luck and have fun.
P.S. Show us pics when you are done :o)
I'd accent it with the black and green and let the roses stand on their own. The pattern that several people suggested, Warm Wishes would be perfect you could use large pieces of the roses fabric.