This artwork has some neatly hidden details in it, namely: Satori's head is positioned right in the middle of the inner dodecagram. More than that, you can find the center of the circle (technically it's the center of dodecagram as well) by drawing several intersecting lines between opposite corners of the dodecagram, either inner or outer one. Their point of intersection (circle's center) will converge on Satori's forehead, above her nasal bridge.
Don't know if this has any deeper meaning, so I'm just sharing this peculiarity.