She doesn't have a nickname, nor has she been given a regular name. And her chestplate is flat because otherwise it would get in the way of the gun.

Sorry the back image is a little fuzzy.

This Front image is a little fuzzy, but it's "Mohawk"!

The back image is a little better, maybe.

They're pretty, aren't they? The colors used are Liche Purple, Scorpion Green, Dark Angels Green, and Tin Bitz for the metal stuff.