Hey Adam your posts are always worth waiting for. It's great that you have the opportunity to paint so many interesting portraits. I also really like the copper pot study, as a beginner at painting it is really interesting for me to see. Also. Love all the charcoal and sketches. Especially the fish eye one, I don't know how you draw them so cleanly with such precise marks. How long do you spend on sketches like these?
adam: your productivity is a great strength. a few words of warning. dont fall in love with the texture of the paint and sacrifice the drawing for effect. i think its better to have integrity in the structure of the drawing and leave it unfinished than a pretty mess where you got lazy . the lady in profile with the red headdress is microcephalic. the right eye of the (presumably) asian lady in a yellow shirt has migrated down her face and looks (im not exaggerating) like quasimodo .
just simplify your painting approach. really. you paint with ten values and colours where four would do. http://upload.wikimedia.org/wikipedi...ph_Carries.jpg
there is a reason painters keep their palette limited. (especially when sketching) it simplifies the problems you are dealing with. think of the broader planes and try not to overmodel faces by using unnecessary colour values.