Why the rosettes image may not be a map at all

[Anton]

My next supposition is that the "Rosette with the castle" doesn't represent the Earth or another planet, I think, it shows the process of division of the Cosmic waters, so, one part (to the left) appears on the Earth (with a castle) and the second - above the firmament (to the right), the "midst" (sky with stars, sun and moon) is between them (center).

This neglects the T-O map. The fact that the T-O map is connected with the "Rosette w/castle" suggests that this Rosette represents either Europe (the part of the T-O it is connected with) or Earth on the whole.