Let's rate some bulls

[Koen G]

So, what's with the VMs Aries and Taurus illustrations? They have their faces in a bush or a basket, but they are still moving forward?

Yes, this is bizarre. In my opinion, the best explanation is that a tree that was originally in the background, has been reinterpreted  and "corrected" as a foreground basket. 

A systematic reinterpretation of background trees (which commonly adorn this genre of imagery) as animal food would explain two things:

1) Walking bulls with baskets of food. The walking is normal, the basket is not.
2) Aries apparently eating a tree. Sheep (Aries) eat grass and weeds, while goats (Capricorn) eat leaves. Note that nothing forces us to interpret the tree as not being in the background, apart from the fact that it overlaps with the animal's mouth.