Here's my process: I made around 40 drawings during a 3-hour modeling session. I like 4 - 12 of them well enough when I get home that I hang them up in my studio. Then I stare at them. I stare at them while talking on the phone. And my eye goes to what doesn't work. I just look at them unthinking and over the following days their problems become clear. Sometimes I can fix it up. Like in this picture of a hand behind a back:
Something did not look right until I drew those two short lines between the thumb and forefinger. They are no more than a half an inch long but to me it made all the difference.
I didn't feel right with this drawing until a made the shadow under the foot a little bit darker.
So after all this winnowing down, I'd say I keep, and post, about 0 to 5 of the 40 or so drawings I started out with.
Here's a link to the drawing gallery There are new drawings in every category. 11 new drawings altogether representing 9 hours of drawing.