What is unique or rare about the VM Zodiac signs?

[bi3mw]

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In her You are not allowed to view links. Register or Login to view. file, Lippincott groups several manuscripts under the title "Michael Scot - German mss – IVa." This group includes the Alsatian 8-legs crayfish discussed by Koen (Lippincott labels the Salzburg ms "Studienbibl. 2 G 8/13" instead of "Sammelhandschrift M II 180"): that crayfish also belongs to the Michael Scot tradition.
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During a research I stumbled upon the original of the cancer on the top right.

Astrological-astronomical collection: Ms. germ. Fol. 244, [around 1445], You are not allowed to view links. Register or Login to view.

The other zodiac signs are also interesting.