Thanks folks. Treamayne, they are going to be 7 inches for the powers, 9 inches for the orders. Since they are all separate, we may mess around with the orientation, but my thoughts are offset concentric circles, not the double eye. Powers in the smaller inner circles.
Good reminder about the fan art guidelines--these are private, and if I did it anywhere else, it would definitely just be little one-offs as allowed in his guidelines.
Anyways, thanks again!