Nice gestures, with a recognizable Finch influence! (Finch Flock Fo' Life!) Something I'm noticing is varied proportions within your figures, particularly in the torsos/legs. I know nailing accurate proportions isn't generally the primary goal of gesture, but once you internalize a proportional canon you'll start to see more accuracy seep into your poses, and you'll know a bit more about what you can exaggerate to help tell the story. If you're a Finch Fan I'm sure you're familiar with How to Draw Comics The Marvel Way, if not it's one of David's key references for gesture drawing. In it you'll find a great proportional canon for Super Heroes that goes along with how David teaches gesture. If you study these proportional diagrams you'll pick up on some key measurements that will help you when you draw from imagination. One measurement that helps me when sketching figures from imagination is that upper body and lower body are almost equal in length, and can be generally seen as approximately 4 heads tall each. It's not a hard rule, but a good one to generalize to get your figures feeling balanced. Here's a free video on proportional measurements that may help, and a few proportional diagrams from David Finch, Marvel, and Loomis. Keep up the gestures, would love to see more! https://www.proko.com/course-lesson/human-proportions-average-figure/downloads

These are really cool, and a great example of how to do quick gesture sketches to work out poses. The one thing I am noticing is that your torso and pelvis are too close. I did a quick adjustment to show you what I mean :)