You are doing great, it seems like you get the idea of leading the eye across the figure with long lines. They aren't perfect yet, in the forth one, for example, I can tell you tried to draw the contour of the torso rather than the gesture, all of them show this same error in some way or another, but even if they are more fluent in some areas, and more stiff and sloppy on others, overall they show a care for flow. Keep practicing, avoid drawing contours, and you will improve. Good luck!