Looking for a book cover for a dark epic fantasy book: "Balance of Power" by Sam Raeder. The novel centers around two men and their battle against each other. The first man is a Paladin of the god, and the other is the leader of a rival group of commandos (who killed the Paladin's son).
The setting is typical European style medieval fantasy. The world is divided between order and chaos. People are aspected to one or the other--almost like the Force in Star Wars, where one is either light or dark. The Paladin is Chaos, and the commando is Order.
Most of the book takes place in the City of Light. The city lacks a traditional wall, but 24 Pillars surround the city, atop of which magical flames burn constantly. When the Pillars are activated, a Wall of energy is raised, connecting the Pillars to completely surround and protect the city.
This doesn't all need to be incorporated into the cover. I'm looking for something that captures that duality of Chaos and Order, as well as portrays a dark tone, since the book is fairly dark at times.