Carnage is an unusual super-character in that she is a symbiotic demon-like creature that latches onto a person and uses their body, often against their will. He gives the host his power and strength as long as their intents suit her destructive goals and is portrayed like a living liquid skin that can form whatever shape it needs. She is typified by the red and black skin that looks like goo and gore with long tendrils, large white eyes and vicious fangs. I selected a variety of pictures that depicted carnage in 'real life', comic art and other media to get a better idea of how he/it can be depicted. I was particularly drawn to a comic depiction of carnage attached to a (very large) female, giving an idea of how I might merge this character with another. I tried to find more iterations of a female host for carnage to help further inspire the character merge, finding some carnage (and venom) cosplay and some more female hosts for carnage.
After further research into Carnage, I discovered that she is from a race of symbiotes called the Klyntar. They were originally a benevolent race that intended to enhance others to help to police the galaxy but as they can share emotions with their hosts, many of the Klyntar were corrupted by impure hosts. Carnage is, by nature, a willing assistant and loyal guardian to her main host, Cletus Kasady but will encourage his violent tendencies. As a psychotic mass-murderer, his destructive tendencies suit a corrupted Klyntar's goals perfectly. Carnage feeds off negative emotions, adrenalin and biomass such as flesh so encourages violent activity, rage and cannibalism. She can use this sustenance to grow weapons, tools and even separate entities. Carnage was deemed a 'she' when the symbiote gave birth to Toxin and is one of several of her kind depicted in the marvel universe, including Venom, Scream, Phage, Riot, Lasher, Agony, Hybrid, Anti-Venom, Zzxz and Scorn.