4: Add Details
Draw in a short straight line from the glasses to the left ear. Use triangles to shape the jacket and shirt collars. Add short lines beneath the shoulders and on the right side of the jacket opening for seams.
Sketch many straight and curved lines to the sleeves, slacks, and shirt to establish wrinkles. Use rectangles to draw pockets for the jacket and slacks. Draw a small oval and a small rectangle on the belt to shape the buckle. Use three straight lines to show the zipper area.