Satan, Lucifer, Apollo... all titles to the same god after his usurping of the original king of Hell who held him prisoner for so long. Torture and unspeakable violations left Apollo in a rather fragile state, but after cannibalizing Prometheus to gain his powerful flames, he revolted from his chains in Calvera's underworld. Now, he maintains a more benevolent rule--mending the souls abandoned by Calvera's Heavens by sewing them back together with Strings of Fate plucked from creatures, beasts, and wildlife born in mortal and immortal realms. His kingdom of misfits and chimeras are understandably spiteful of Calvera's fervent worshipers, and Apollo enjoys dismembering their bodies and souls if they stumble into his abode... he especially enjoys those delectable eyes. It should also be noted that he dresses in women's clothing out of spite to Calvera and embrace their rebirth after their transformation from the flames of Prometheus.
The pose was inspired by Red and Black Figure paintings found in Archaic Greek pottery, along with a background symbolizing solar and lunar eclipses. Apollo's power revolves around the ideas of light, music, and eclipses (his most powerful attack, Eclipse, turns him into a black devil surrounded by blue flames which can instantly incinerate any soul in a general area).