Three-section orbs

[Barbrey]

One thing I've long wondered about is a possible relationship between the Voynich 'cosmos' illustration and the rosettes folio.

In the cosmos, the Earth is in the centre, and the sky outside, as one would expect it to be.
In the rosettes it is the opposite. The sky with stars is in the centre (carried by containers or towers) while the Earth is outside in the far upper right corner.
In the Cosmos, there are spirals coming in from eight directions. That they come in is suggested by the direction of the writing.
In the rosettes, there are eight circles surrounding the centre, all (apparently) pointing to it.

Alternatively, the upper right circle could have this role all by itself.
The sky with the stars in the centre, the Earth on the outside, and one spiral path.

I do not see the cosmos illustration (f83v3) as something that stands by itself.

Nor do I. In the rosettes, 4 circles directly connect to the middle, whereas 4 have features that point toward it but don’t directly connect. I’ve always felt there was a correspondence, but can only guess at what it might be, ie. phenomenal vs  ephemeral influences. This is because I think the entire middle diagram works outward from the earth to the celestial, and the 8 outer spheres are details. 

The stars in the lake in the central diagram, I believe to be a reflection of the night sky, which is what you would see looking up into the canopy of heaven directly above. The underside, if you will. So to me there is no sky in the middle of the earth; it’s just water ((or the water of life).

There is definitely an “as above, so below”motif to the rosettes page,imo,  but that interpretation depends upon how you orient the spheres around it.