Unfinished 20 Minutes Sketches

I've been attending weekly drawing classes. I learned in college that to become a better artist, you need to draw every day. I always carry a sketch pad in my car and pick it up often to sketch a scene. Robert Johnson said at his recent workshop that, "If you can draw the human figure, you can draw anything." Below are photos of recent 20 minute gestural sketches from recent classes. Most sketches are done for the exercise, not with the intent of being finished work.