I just found this thread while looking up more info on Sheridan Portfolios for 2013 (I'm busting my butt on it). I would really love to join this endeavour with deadlines and get feedback from others. I've been jumping all over the place with mine and constantly redrawing things, but I think a second opinion would really help.
Oh and I know the professor you are talking about Dunstarr. He was my Imaging Systems teachers in Art Fundamentals last year. He also teaches first year animation. I am really kicking myself for missing portfolio day.
Anyways, here is one hand drawing so far. I tend to have a weak spot in line quality and proportion. This one is a clean up version of the first draft.