I always got better results from students when I gave them a clear written rubric of what the goal was of the assignment. Last night I discovered why. Life drawing can become the routine like morning yoga where you just do it “because” and don’t focus on barking in downward dog
But having stated that I want to work straight lines against curves forced me to question drawing arms of a bony model. Skill and having habits is perhaps the easiest way to stop thinking when working.
In drawing you can question every line or just draw the same old same old.
Placement in each panel is determined by scale of your figure. Making figures a different size from frame to frame implies some point of time or new gesture or experience.