John Singer Sargent reproduction and notes

Above is my reproduction of a single figure from John Singer Sargent's much larger composition The Daughters of Edward Darley.  I did the painting in two three hour sittings.  I thoroughly enjoyed executing this reproduction.  Sargent was extremely talented at simplifying nature and reality into simplified yet extremely precise brushstrokes.  I particularly enjoyed painting the young girl's hair and clothing.
Today I came across this article http://www.goodbrush.com/misc/painting_lessons/sargent_notes.pdf.  It contains the working methods and advice of John Singer Sargent.  It is saturated with quotations from the master himself.