Thanks for the more subdued background. They all appear to be Pelt Rainbos. But the white ribbons on the upper right one look very weak in this photo. In fact, I might need another view to be sure it is. It looks like most of your light is coming from the top of your photos, which leaves the lower sides of the marbles shaded and harder to see. You may want to get yourself between the window and marble, if you know what I mean, off to the side a bit of course, so you don't shade them with your body.