She is made from the DNA of both Blanche and Blueberry.

She is the one who didn't really need much training in her skills due to Blueberry's ability to pick up on stuff fast (Blueberry was meant to go out fast as the Paladins was working on a Android of Virtuoso at the time and the have them beat the Paladins out.). Marian works as a dancer in her free time when she is not saving the say as Lady Boomer.

Base by  SonicBoy100

She looks a lot like Blueberry and less like Blanche.