In Mythology, Jormungandr is the Midgard Serpent and is depicted as a giant serpent. He has one black and one red eye (left eye) to reflect his dark soul and that he is in league with Loki. The Mythological depiction is a metaphor for reputation, symbolism, and/or what he is known for.
Features to include when drawing:
A Giant Serpent
He is one of Loki's sons
Colors: Black, red - Splash Color = Red
Jormungandr represents one of the destructions
In Tradition, Jormungandr is depicted as a half-man/half-serpent. He is a beast-man with man thoughts. He is associated with naval forces. He has one black eye and one red eye (left eye) to reflect his dark soul and that he is in league with Loki. In Tradition, don't depict him as a giant or gigantic, he should be roughly the same size as the Gods. Think larger than life, leader/king of a realm or kingdom.
In Legends, Jormungandr is depicted as a Naval military commander with a serpent symbol, banners, head dress, and the like, much like a Pharaoh head dress with a serpent. He should have minimal to no facial hair. He is a Mega-Villain. He should be depicted as a man, not grotesque or ugly, possibly even marginally good looking. He has one black eye and one red eye (left eye), the red eye should look as if the white area is damaged but still have a black iris. His black eyes and hair reflect his dark soul and that he is in league with Loki. He is a counterpart to Tyr or Thor in size and strength.