30-Second Upside Down Expressive Doodle of the Figure

Done as part of a practice session with poses of 30 seconds in length.

My current goal is: Get my forces of the figure bones and muscles, and their perceptions, to look or seem easy.

This one is where I've gotten a little bit of expression and emotion of the lines of the figures. What do you think? What can I really do to make my lines all the more expressive.