Usually, when I have a model in for a session, I leave the drawings where they land, within the time constraints assigned to the pose.
Sometimes, the drawings are good.
Sometimes, I look and think “Did I draw that?”
And other times I think “Did I draw THAT?”
There are those rare occasions to look through the unfinished drawings. Oftentimes, fiddling with something beyond its time window can only make it worse.
And sometimes it makes it better.