Taking a little time today to do some loose pencil studies.
Drawing 1000+ sketch cards featuring mostly head shots helped me develop my color sense and anatomy. Repetition can be boring, obviously, but there’s no way around it. The point in repetition isn’t excitement. The point is to learn. Over and over and over and over. Then one day you pick up the pencil and all that time you spent drawing and studying and studying and drawing pays off.