Joe B Pencil to Paper Exercise

Hi, this is my second attempt at the pencil to paper exercise. I used a 3B pencil for this drawing. My first attempt was made with a 4B pencil, which felt too heavy to me. My focus with this drawing was to practice using a continuous lines (which I really enjoy) as well as starting to use value matching to bring life to the drawing. I know my proportions are off … definitely an area that deserves more attention in the future. Any feedback is greatly appreciated!