Done as part of a 30 minute class.
My current goal is: Improve my rendering of hands
The two figures on the left look really good! Nice job with the shading to point out the shadows, both figures are drawn with many curve lines to make them more dynamic, and their overall gestures are captured beautifully. I can visualize these two drawings being people making these poses, which shows that you drew them well.
Though I do think the head for the left-most figure is a bit large - maybe that was how the person was from reference. But their gesture is great.
As for the two figures on the right, I think these are 1-minute gestures. If so, these are also good. That pose where the figure is lying down is a hard one because you have a foreshortened frame approaching towards the bottom-left. Because of this, I think the head should be larger than how it appears because it's approaching towards that direction. The gesture itself is otherwise captured well.
As for the figure on the right, I think it looks good.
Really good job on these overall!
Good evening, Punch Coco, and welcome aboard, if this is your very first time, then let me say, Congratulations! You've asked for comments for the first time ever. I'm Polyvios of Salem, MA, and how are you doing tonight?
Greatest job on rendering motion, spaces, forms, and relationships. (Proportions and shadows) And some lights and shadows and the gestalt, too!! All I can say is; please add this digi-drawing to your portfolio now!! Hope this had been completely and utterly useful. Or if not satisfied with this, you can please keep up the greatest practice!