Take the other pieces out of the picture and audition the 3rd from the left by itself. Just walk by it every now and then and see if it begins to look like it belongs there. I hate when I run out of a perfect fabric and can't find any more. Sometimes I take pictures of each choice and keep looking to see which one works best. I understand not wanting to buy more, it is irritating to have a stash and not find the perfect match in it!