Greetings!

Somehow it struck my attention today that on blue Kabbalah poster for Malkuth instead of a planet symbol there’s a cross in a circle. Same as on Glorian logo. Why does it stand for Malkuth?

Also on the light (older version) poster the whole Sephira is the symbol itself! And each of the four sectors is painted with different colors. Those were not put there by chance, right?