I worked on the drawing of this triceps study.
1. I put some arrows on the reference photo, so you could see where I would like to ask!
a. Is the area below the lateral triceps the biceps or the brachialis?
b. What are these shapes in the shadow areas of the triceps?
2. Could you please explain how I could apply CSI to this triceps drawing? I mean the C curves, S curves, and straights? I still don’t recognize the S curves from the C curves; in which area are the S curves, C curves, and straights?