I see the potential in a lot of these poses to be pushed even further, exaggerating movements and playing around with the flow. I personally can't do it on poses faster than 2m. As for drawing the outline, from what I've observed, drawing the outline seems to be the default state we revert too when doing gesture. I do it myself and it's difficult to kick the habit.
I tried to follow Michael Hampton's techniques for a while (He recently did a video on the proko channel but I haven't really been able to put it into practice on 1m poses due to a lack of line confidence and observational skills. Maybe you'll have a better time with it, you have such good lines.