It's probably a sad sign, but my first thought when I saw it was "thank goodness the artist didn't use a blue-eyed blonde." I think the model well enough for this piece- Romania isn't absolutely perfect, but when you're looking for a model you want someone who can convey both the character and the background of the figure you're looking for, and I don't think you've compromised the spirit of the piece.
What is your goal for this work? What do you see as it's final setting? If it's digital now, do you plan to print it out for any particular usage?
As far as criticism goes, the only problem I see is the outlining of most of the shapes, like you left your lineart in. I think you should get rid of this and just let the local values make their own transitions, as the outlines detract from your otherwise excellent rendering.