Following the death of her brother, Scarlet was the last surviving member of the Sanguis Vampire clan. Once passive and cautious, she became full of rage and feeling that humanity was cruel and selfish, she wished to cleanse away the filth that was the mortal race by destroying the galaxy. She sacrificed herself to save K-16 after she saw the error of her ways, allowing the cyborg to fight another day.
I never actually thought much about how Sicari characters would look outside of the games, so drawings like this are neat. She looks like a dragon though.