Here we have a small correction i did in the class. The drawing on top was done by the student and mine on the bottom. It's really tuff sometimes when you doing a sketch and all of the drawing principles are trying to crash down into one little sketch. The idea I was trying to stress here was "keep it focused on what's happening". Meaning, the girl was sitting and smelling her steaming cup of coffee. The top drawing was struggling with the clarity and sillohuette of that goal. It's always nice to look for a point of interest or story in the pose of a gesture model or someone your sketching out on the street.