this is a great step in the right direction
you now are painting with the graphite in stead of noodling with a pencil.
keep this idea of form going when you sketch. it suits you well.
things to remember::::::
you would probably see a little bit more of his eye lids even in the shadows.
ears are hard, draw lots of them. after a bit they become easy. i would just do one page of just ears and youll never have to worry about them again.
also take a good look at this.
john singer sargent = amazing
it reminded me of your drawing. study how he drew the hair.
in fact re drawing this a few times might help, but try and keep your form and line work of the last drawing. its painterly, and with a little bit of refinery i think you might be on to something.
you might also want to check out simon fellah for his line work. pretty intense but help helpful.
ps thanks for droppin by the sketchbook