I have gone back to basics and used the set I purchased at the very first SU workshop I went to (almost 2 years ago now) SImply Said. It is an excellent set for creating backgrounds and also main focal images. The colour combo is Real Red, Pretty in Pink and Basic black.
I threaded some ginghma ribbon around the edge of the mat for extra added interest. The background was created by stamping numerous punches from the set all over randomly.