Quote: By integrating the
principles of neuroscience into art education, she
found that almost anyone can learn to draw realistically
through a series of exercises that cause
students to shift from the left hemisphere mode
of thinking to that of the right hemisphere. Professor
Edwardsâ exercises progress through five
skills needed for drawing realistically:
⢠the perception of edges
⢠the perception of spaces
⢠the perception of relationships
⢠the perception of lights and shadows
⢠the perception of the whole
The above is from this book:
Photography: The Art of Composition: Bert Krages: 9781581154092: Amazon.com: Books
Photographer - The Art of Composition
You keep coming back for more shows you have humility.

OK here's my opinion ,first what are you trying to do?
Make an artistic picture or a portrait although both are similar.Do the pictures of Christine have the 5 important elements
listed above? If it's a portrait You have failed because a portrait is supposed to make a person beautiful and I think Christine would be sad but I'll give picture 9 to you because she is being beautiful except for the contact lenses.
Exposure aside and the 5 elements of drawing realistically.
Composition is another thing,look at picture 1 and 5,again the 5 elements of composition,in 1 where is she looking at? (the perception of space),the space is cut off where else in 5 it is correct but her back outline is missing (the perception of edges) like the cheshire cat in Alice in wonderland which can make itself disapear leaving only it's smile or The cartoon Jasper the friendly ghost.
You have to understand if you want people to look at your pictures as an artist you must at least interpret it as what other people can perceive as reality ie. form,shape,colour,light and shadows.Get Christine for another session I look forward to the next set of pictures with this new understanding that you have learnt here.
BTW do learn the rule of thirds and the meaning of portrait jargon like head and shoulder shot,half body,3/4 body and full body shot.Posing is another ,how to pose your subject so they look good,the eyes,head/hair/arms,body and leg placement.Another book on posing would be helpful.
Edit: Although you are using a pro camera you still have not learn the tools properly,the angle of view that lenses make and the aperture
for controlling depth of field thereby isolating the subject.