I have an exercise I’ve been doing with some friends in a private forum that I thought would be useful here.  It’s a kind of simplified masters study, where we break down the work of our favorite artists into boxes and cylinders.  Check out Drawabox.com to get up to speed on the theory that underpins form. Understanding convergence and how circles work in perspective is very important. On the site, when you get to the 250 box challenge, and 250 cylinder challenge, I would suggest doing at least part of the studies in the form of this figure analysis exercise. Doing so will help you apply the procedural knowledge (the how) you learn there, to the contextual knowledge (the when) you’ll need to incorporate the lessons into your own work. If you struggle with drawing simple forms correctly, this exercise can help. They only take a few minutes to do and are good exercises that can help you get the most out of your other studies that assume this knowledge as a foundation. I’ll post a few to get us started. Post any exercises in the replies. Also, feel free to post your own favorite artists for the rest of us to analyze. Different artists have a variety of proportional approaches to the figure, and it’s worth studying the differences.