Believe it or not, this is actually Carmelita Fox but an early version of her. I actually really like this version of her. It makes her look a little hardcore. I mean, look at the gun, it's huge, it almost looks like a bazooka.
That must be why Sly first mentions Carmelitas pistol as a bazooka in the first game.
Here is the image of her early version.
Sly Cooper wiki: http://slycooper.wikia.com/wiki/Carmelita_Fox/Gallery?file=Sly1_first_Carmelita.PNG
I found this picture of her a long time ago and ever since I saw it, I wanted to draw it and now I finally got it done.
In the picture it may very well look like she is wearing a hat, but I have gone through the cutscenes in Sly Cooper and The Thievius Raccoonus and I have seen that it is just the moon and the Eiffel Tower, just so you know it.
Carmelita Fox © Sucker Punch/Sanzaru Games