Pen drawing is not simply outlined with black lines, but also knows how to leave white, which can make the picture appear full and rich. For famous paintings, the seemingly simple black and white lines are actually a test of the painter's carefulness, patience and perseverance. Because once a pen and ink painting is wrong, it cannot be changed. Every stroke depends on the artist's wrist strength. Then realistic pen sketch should be created with realistic techniques. Pen painting gives a strong visual impact with its unique style, strong sense of lines and strong contrast between black and white tones. The seemingly easy pen and ink painting actually requires the painter's strong skill and patient painting attitude. Whether it is pen drawing or oil painting and ink painting, the most important thing for a famous paintings is the presentation of ideas. The author's ideas, views, understanding, emotions, etc. are the core elements. This kind of work is not worth much i…