This is an evil version of SulfurCupcake's character Artillery. Please see her gallery of related characters here:
http://www.dolldivine.com/galleries/SulfurCupcake-295650
Artillery:
Her outlook is invariably cheerful, no matter how many she has to kill. She loves a good fight, and starts to get restless if she goes too long with spilling some blood. Happily for her, her post-apocalyptic world gives her lots of chances to fight. Resources are scarce, and she's happy to take out all the competition to ensure her band's survival. That's what friends are for, right? And if her companions sometimes wish her protection involved fewer dismemberments...
I really do pity anyone who stands opposed to her :P I feel like she would be ruthless before the rest of the post-apocalypse world figured out how to be. The scariest part is she probably thinks the world is better this way XD