I think it is true of all art! You are never finished. I have reworked these drawings until I'm ready to shout!! The final drawing left many things needing to be revised but there are only so many hours in the day. Chalk it up to "what did I learn" from the experience and "move on". Which is exactly where I am today. An enjoyable class but ready to turn the page and get a new sketch book for the drawing class for next semester!!!!