Done as part of a 30 minute class.
Positioning works well and proportions are consistent! In the standing pose, wrapping lines could be employed in the legs to emphasize how they advance or recede in space.
These are really good! For future long poses, don't forget to always start with a gesture drawing. It will help give your final product some more life, as well as provide structure for more confident lines. For example, in these, the feet and ankles look a little off in the blue, and the the leg cross in the red one doesn't have the right weight and foreshortening. Focusing a little more on the basic shapes first will help. Additionally, since this is a longer pose, it would be nice to see some more details come into play, like the face and hands. However, definitely focus on the body pose first.