*LOVE* the 1940's style pin-up art..
Good example of "bad girl art" right there...
Don't have all my tools with me at the moment (not at home), but I'd soften that just a little bit to give it a bit more of the "pinup" style. Not linking to it, but if you do a quick Image search on Google for "pinup girl art", you'll see some excellent examples of the style.
With what tools I have with me, I slightly altered the nose art to give you an example. (cleaned her back up a bit, and did a bit of a soften on her).
But I *love* what you've done here... it's looking great.