Daniel,
Thank you for your compliments and thanks too, for your critique. I appreciate it very much. I have always worked in live model class but children models are scarce and thus, the photo. That is a point well taken about the color in the middle values and I will make a concerted effort to remember that next time.
This painting has also been glazed which is a technique I am very interested in. I have been watching three ASOPA demo videos this week. The artists are John Sanden, Michael Del Priore, and David Leffel. They are very interesting and it's great to watch their demos. I am very careful with my drawing so I am not sure if the features are off or it's just the girl's stage in development. As Sargent said, "A portrait is a painting with something wrong with the mouth".
Renee