Well I am truly impressed... ...again.
Just a quick suggestion, I'm not against watermarks, in fact most of my art on here uses them. But just as a suggestion, try not to have the focal point of the art piece (in this case the face) be in the center of the picture if your going to use a water mark. This is because the water mark will obscure the focal point, like here it is hard to see her face and make out her features.
This is just a suggestion, you can totally ignore it if you want, or even hide this comment if you so desire..