The Demonlords are the true rulers of Hell in the Eternal Seven world. All demonlords are elemental, usually controlling multiple elements but almost always Fire being their power of choice. These magical entities are purely driven by the relentless will of the Black Heart and possess a nearly limitless magical strength. The depiction below is a Demonlord manifesting in the flesh, a very rare occurrence, usually done in order to experience death and learn by immersion.
It is rumored that Alexander Ironhand was a demonlord as well before emerging with the rest of the Ironhand demigods to claim dominion over Earth.
This drawing was entirely painted in Photoshop, I used a photograph as a reference for the girl.