This week started with a couple corrections and additions to my torso diagram. We’ve added in the lats (lattisumus dorsi) and erector spinae muscles down the spine. Along with the shoulder musculature, that completes the simplified torso model we’re learning. I don’t exactly feel like I’ve got any of this mastered, but that’s why we practice.
The next step was to highlight those muscles on pictures of real people. I thought ahead this week, and so instead of doing that on the photo reference provided, which I can’t share, I did sketches of those references and drew on them. Colors are from the same keys above.