Well, I am very happy with this portrait despite not getting a likeness to the model this time. There is so much happening in portraiture painting that is interesting to me as an artist and simply getting a likeness isn't what makes portraits fascinating. On the other hand, of course capturing the person's features plays a role. The trick is balancing the two.
So, I've decided to fill a sketchbook with pencil drawings that concentrate solely on getting a likeness to the model. I'm hoping the drawing practise will hone my skills, enough so I can forget about that practicality and go back to 'responding' to the model with watercolour paint. : )