Woo! First post on the sight!
I would have to say Evaine is a mixture of different characters, both from my own ideas and others from different sources. Her name is one, Leblanc from League of Legends. She also has a mixture of a mesmer/Leblanc personality, with everything not appearing as it may seem.
There is a dab of Vincent Valentine from the popular game series, Final Fantasy VII, when it comes to her silent demeanor, wishing to listen in on the conversation. And before battles, she will give her insight in a rather cryptic manner.
The rest is from my own mind yet I have t