These are interesting ideas but, IMO, they aren't fully realized as pictures.
Each one is a little short of the ideal.
In #1, the shadow to the left s distracting and the tip of the diagram shouldn't be clipped.
#2 is all design but the two side ribs aren't complete and thus spoil the design the design (+ the blank end of the center rib)
#3 - this would be great if the sun or the moon was in the opposite corner to balance the man-made orb.
They are interesting but fall a little short of what they could be.
Lew