Anatomy of the Human Body
How to Draw Shoulder Muscles – Form
Invent the back muscles! Draw the rib cage, scapula and humerus as simple planar forms. Then add the shoulder muscles. Try out different poses and angles. If inventing is a bit too challenging for you, start by using photo reference or the Skelly app, and ease in to invention. I also have premium model photos available, or you can get a free model sampler pack by subscribing to the Proko newsletter on the home page.