Chang Chen-hsiang first uses a brush with the bristles in a point, to paint the outline of the pupil, then uses another brush with the bristles slightly splayed out to spread the graphite powder, to give the eyelids depth. Then he uses a duckbill brush attached to an eraser, an "eraser-brush," to draw out crows 'feet around the eyes following anatomical principles for the musculature.
張振祥先用筆毛未鬆開的筆畫出眼珠的輪廓，接著用另一枝筆毛稍微鬆開的筆將碳精粉推展開來，畫出眼瞼的深度。然後用鴨嘴筆夾住橡皮擦的「擦仔筆」按著肌理畫出魚尾紋。