NYIP Instructor's critique Unit 3

I received my NYIP Instructor's (Walter Karling) comments back on the Unit 3 assignment.
As I thought the lesson was rather perfunctory, I found Walter's comments equally so. There's not much to report other than a brief discussion of two kinds of lighting: form creating and directional. Using the coffee beans as an example, Walter directed my attention to the bean in the leftmost foreground and pointed out the curved shadow on the bean itself; even though it is out of focus, it renders a sense of three dimensionality to the bean. This is "form creating" lighting. Directional lighting is shown by the soft 45 degree shadows on the paper.
Varying degrees of side lighting contribute to the texture in an image. The beach shot illustrates this principle wherein the low afternoon sun emphasizes the texture of the sand.
Back lighting as shown in the oleander blossom demonstrates the transparency of a subject. Walter pointed out the "bonus" of the flower's silhouetted pistils and stamens, also a feature of back lit subjects.
Finally, Kassandra' portrait was taken in the open shade of an overhanging roof. Walter thought it was a nice portrait, but the deeper shadows on the right side of her face were contributed by her orientation to the indirect lighting; he would have preferred a more even illumination, which would have occurred if she had turned her face more towards the camera for example. I like the dramatic effect better, however! Portraiture is the next unit and I will let you know when I have completed it.