I vote for the third picture with the brown. The brown pulls from the tiny flecks of brown in the gold fabric . The darkest fabric works well too. You have to decide on how much contrast you like. A rug salesman told me the colors of the rug I chose were called Quiet colors. They don't jump out at you and say, See me. There is enough contrast to see the block design, yet the overall feel for the quilt is serene. Who knew colors could be quiet or loud? Good luck with your choices. Your fabric is lovely.