This is rather off-topic, since it's not about the Rosettes page, but it adds to the parallels with illustrations from Hildegard's works discussed above.
The Moon and (more clearly) the Sun in f68r2 can be compared with those in Scivias You are not allowed to view links.
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Login to view., 1200 ca: it's on the other side of the folio that contains the thunder illustration discussed by You are not allowed to view links.
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Login to view.. The two illustrations of the Sun can be described as human faces surrounded by rings decorated by several colored rays (red in Scivias, blue in the VMS).
The Scivias detail makes part of an illustration of the six days of creation (Genesis). The inscription reads "Dies quartus sol et luna et stelle" (fourth day: the Sun, the Moon and the stars).