That is very neat, I like that a lot.
As for a medium it can really be up to you. I know both have potential to look very nice.
I think that I would prefer brunette :)
http://i168.photobucket.com/albums/u...psfd09645c.png
You have to put this ring on her hand, I pick on her all the time because how gaudy it looks hahaha
I just added another picture of her in the references to help!