So Many Poses
When more than minimal shading appears on a drawing, it probably means that I worked on the drawing the next day or so for at least 30 minutes. Minimal or no shading means I finished the drawing during the drawing session.
A back view pose makes it easier to finish a pose: less detail and no facial likeness with which to struggle.
Rough sketch, unfinished drawing.
Messy, rough sketch.
Moody pose
Unfinished portrait.
An even more unfinished portrait.