I can understand the comments concerning framing., etc. and if this is all he ever shoots, he needs to work on all that.. However, keep in mind a couple of things.. this is not a fashion shoot, with a model, and it is in Texas. These are photographs of a high school girl.
Yes, there needs to be some of those ideas added, and the "rules" are good to work with, but 99% of the buying public cares less about all that, and will be more impressed with good quality.
I am NOT saying to never shoot for "arts" sake, using the rules, but that will come later. I think first the photographer needs to grasp the fundamental concept of portraits.. then go to the next step.
To me, more drama in the poses and lighting will help when it comes to selling.