My favorite of the Valentine's Day cards I sent last year was this "dark" one I sent to my brother Jack and his lady Mary. I used SU's Loads of Love stamp set which I'd picked up for Christmas cards, inked with ColorBox's Cranberry ink, and cardstock I had on hand.
I'd picked out the ribbon from one of those MakingMemories' 9-pks - this one's called Cajun - where they package a variety of 1yd lengths of coordinating ribbons in one pkg. It's all about the ribbon, right?!