Hello! Nice poses first off! They look really good. Your proportions are good too. though with gesture you shouldn't concentrate so much time on details of circles and shading. You need to get the basic feeling of the pose with gestures so try to just concentrate on filling out the form and getting the figure then if you have time you can try to clean up the figure with shading and fix any mistakes. A good exercise is to do like 5 60 sec ones to kinda get the rhythm of just drawing and not analyzing. Good Luck with the rest you're doing awesome work!