Work In Progress!

I thought I would post my progress as I draw this picture of my father. Dad's face is interesting because it has lots of wrinkles and creases; just what I like to draw. I'm using a mechanical pencil with an HB lead and a 4b charcoal pencil. I used a grid to get the placement of the features right and I erased it as I went along. I still haven't finished drawing his shirt. I have loads left to do on it and no one area is completely finished.