Thanks for the tip-thinking about gesture in smaller body parts. Don’t know why this didn’t occur to me sooner. Did some gesture of faces and hands today- learned some things about the structure that didn’t seem easily solvable with boxes and cylinders.

For the first ones it seems like a basic loomis head with gestural features - interesting. Is this activity from the portrait drawing class?

I see a nice indication of line of action in your drawings- assuming that this is your starting point- looks good. It seems that you are doing a good job of connecting the major masses. Timing is likely challenging since you appear to get caught up in details-cross contours to establish volume, more subtle curves of parts of limbs. These are not bad things, you might consider focusing on one aspect at a time otherwise you’ll run out of time. You may also try to simplify. It your goal is to add volume, then try with very basic shapes, circles, cylinders etc. Marco Sordi has some nice examples of various approaches to gesture and quick sketch.

I like your approach here, including the individual ribs and cartilage. I may try this too. A small thing, although you have perspective lines, they don’t appear to converge.

I like your approach to facing the problem head on - inspiring me to try some gesture with dip and fountain pens. With short poses, i think that you have done well capturing some of the subtle contours eg fat around hips / thighs (or that is how I interpreted some of the contours). It seems with some poses that you focused more on details and didn’t capture the whole pose.