2 notes. First that solid circle is like Pearl's, a Caste Mark. Each different caste of Exalt (a human with a sort of soul extension) has a different mark. This is the Zenith Caste mark, the Zenith caste as also Solars but are the Priest Kings of The Unconquered Sun, the highest of the gods and the entity that empowers the Solars.
The imagery behind him is not his Anima Banner (a display of magic light caused by the discharge of magic by exalts that, at the highest level they are unique to the user.) but a combo display (each magic technique, or charm, can only be used alone. Learning to use more than one at once requires a combo, which is like a special meta-charm. Combos are rare and difficult, even by the standards of magic.)