A really nice job creating a mood and giving each part of the painting a texture of its own. You can tell that the cloth is smooth and hat her face is soft. The eyes look really nice also. There are a couple of things that could use a little adjustment.
You did a very nice job on the center line of her face. The nose and mouth are lined up nicely but I think her forehead is pushed a little too far to the left side of the image. Try using the Filters> Liquefy tool in Photoshop to nudge it back to the right. Along with that you can try widening her face toward the right just a little. I always have to go through this process after I paint a face.
To make the face pop out a little you could try putting a shadow across the top of her eyeballs. Eyelids cast a shadow downward and it gives the eye depth. It is very subtle but helps shade the eyes so they are not so bright.
P.S. You presented title and signature in a very lovely way. I love it when the signature is just as pretty as the painting.
This is a lovely painting. The dim skin tone; the texture of the hair; the folds of the cloak are all very well done.
However, I do find that the way her hairline is positioned throws of the face a bit. Also, the line of make up that wraps around her left eye and then hooks inward towards the nose should curve more with the nose; in and downward.
Your welcome.. I really can't believe that you did this with a mouse... i would have died. I can never make up my mind with color (so i just do pencil drawings) you did a wonderful job at picking the colors