I was studying the neck, collar, and shoulder area today, but unfortunately so many of my practice sketches turned out awful. I'm too ashamed to show them publicly. :) Perhaps, eventually! For now, here are three of the sketches that turned out decent, as well as a portrait and side study.
By the way, I love doing my studies in black&white because it's much easier to just focus on the shape and form. Anatomy is easier to learn when I don't have to worry about color.