It depends on the effect you want. I like the upper left one because it stands out and is a really nice looking fabric. Upper right brings in another color family and has an excessively large pattern for this usage. Lower left feels like a different type of pattern. Lower right fits very well with the other fabrics. IMHO, a BIT more color and tone distinction is more effective. Now squint at it and see which one YOU like best. After all, YOU are the one who needs to be pleased.