Hey Samuel, There are somethings that I notice you are consistently doing in these drawings. Mostly, your making the pelvis too straight up and down. The pelvis usually points down and away from the torso to counter balance the upward tilt of the ribcage. I did some sketches to show you what I'm talking about, I hope they help :)

Hi @brandon111, nice studies! "I often found myself having struggles in seeing through the body to find the spine in front and lateral view." For me it has helped to imagine touching the spine, to get a hunch of were it might be. Also, make sure to practice so you can draw the spine from imagination. When you're drawing a figure, you won't really see the spine, since it's burried deep. What allows artists to "see" it, is that they imagine where it would have been, based on their knowledge of it. So learning to draw it from imagination is key. For me learning to draw something from imagination has been a mix of drawing from reference, then trying from imagination, then checking with reference to see where I'm off. "I also want to know whether my circles in perspective are right or not" There are things about them that you get right, but there are also things that are off. If you want me to guide you in that, draw a few cylinders in different angles, from imagination, then tag me (@Jesper Axelsson), so that I can take a look. Draw through the forms (lightly) as if the cylinders were made out of glass. I attached a slide with tips on drawing cylinders. This video Structure Basics – Making Things Look 3D, might also help. While you're at it, feel free to do the same with boxes. I hope this helps :)

Hi @munchy, nice studies! The overall proportions of the upper body are looking pretty good. And I think you did a good job making it feel three dimensional, especially in the heads. Nice use of lineweight; with darker lines for the contour and lighter lines for crosscontours. - Some of the cylindrical forms have ellipses with sharp corners and sometimes the crosscontours have the wrong shape and angle. You might benefit from practicing drawing cylinders. If it sounds like a good idea, draw three cylinders in different angles, from imagination. Draw through the forms, as if the objects were made out of glass. Then tag me (@Jesper Axelsson), so that I can take a look. While waiting for my feedback, feel free to check out this thread https://www.proko.com/s/vdjs where I suggested a similar exercise to another student. - The proportions of the spines are a bit off. If you need a refresher, rewatch this video How to Draw the Spine. It might also help to study how the spine relates to the pelvis, ribcage and skull. Drawing it in relationship to those major masses, rather than on its own has helped me a lot. For example, you might notice how the thoracic portion starts where the 12th ribs attach to the spine, or that the thoracic portion ends at the top plane of the ribcage, by the 1st ribs. The thoracic portion of the spine is part of the ribcage volume. It's tucked into the back of it. I hope this helps :) Let me know if you have any questions!

Hey Jack, Sometimes when working with ovals and circular shapes it can be hard to figure out the perspective. When that happens, you can convert everything to boxes, it really helps. I did a couple of sketches based on your drawings to show you what I mean, I hope it helps :)

Nice fluidity between the primary masses, and the subtle twist you captured in the lumbar area of the middle pose really helps sell the draw through! Great work!

Hey Jack, These don't look that bad, maybe a little rough, but not bad. As far as the perspective goes, your not that far off, you just need to clean things up a little. I did a quick sketch to show you some things you could work on, I hope it helps :)