On the marble at the link, the white and yellow ribbons appear to be carefully paired up with each other.
I've been hoping someone would remind me of the ribbon count on the angels since they're so hard to count in the photos. But first of all they are difficult to count in the photos, which is different from this more tracer-looking marble. And secondly, I think there are different numbers of yellow and colored ribbons on the angels. They aren't evenly matched like on the tracer-looking marble.