The Snake Old God is breathing Green Energies! Seems the Green Energies on his head aren’t the result of being electrocuted like some on the Forum once claimed.
Speculation on my part but that could just be flowery metaphor for his powers over the 7 sins. Was there ever any historical reference to it being a literal seven headed beast?
Cool photo. With the green he looks more like a fel entity than one of the void however, and does that look like Darkmoon Fair at the bottom to anyone else?
To be fair the Fel was never actually given an origin in Chronicle. Only the Demons were given an origin and that was being the result of Light and Void clashing chaotically in the Twisting Nether.
The Void itself is Chaotic so Fel should be capable of manifesting there just as easily as in the Twisting Nether.