I have always found portraiture a challenge. To produce a drawing that displays the proportioned features of a human face is one thing, but to have it also convey a reasonable facsimile of someone's distinctive likeness through accurately rendered features is something quite different.
My graphite portraits are highly detailed and take many hours to complete, while my ink portraits are, for the most part, quick sketches that aim to capture the spirit of subject.
Bubbles at Six Weeks
Honey Moon Mirror