The method of painting Wei Wuxian and Lan Wangji is as follows:

1. Prepare tools: Choose appropriate brushes, paints, drawing paper and other painting tools.

2. Reference materials: You can refer to the actors' images in the TV series "Chen Qing Ling", or you can create based on your imagination.

3. Draw a sketch: First draw two rough outlines of the characters on the drawing paper, paying attention to the proportions and postures.

4. Refinement and perfection: Based on the sketch, gradually improve the image of the character and draw details and characteristics.

5. Describe the costumes and props: Dress the characters in the distinctive costumes of Wei Wuxian and Lan Wangji, and add some props, such as flutes, pianos, etc.

6. Add background: According to the storyline and character, you can choose to add some background elements, such as landscapes, buildings, etc.

7. Improve details: Make some fine adjustments to the picture to make the overall effect more harmonious and beautiful.

8. Signature: Sign your name in a corner of the picture to mark this as your work.

9. Appreciation: Take a few steps back, appreciate your work, and feel the story and emotion it conveys.

When drawing Wei Wuxian and Lan Wangji, you need to pay attention to:

1. Character proportions and postures: When drawing Wei Wuxian and Lan Wangji, you need to pay attention to the proportions and postures of the characters. . Wei Wuxian is a lively and cheerful person, so his posture can be more free and flexible, while Lan Wangji is a calm and reserved person, so his posture can be more dignified and steady.

2. Costumes and props: The costumes and props of Wei Wuxian and Lan Wangji are also details that need attention. Wei Wuxian's costumes could be brighter and brighter, while Lan Wangji's could be more plain and simple. You can add some props that represent the identities and personalities of the two people, such as Wei Wuxian's flute and Lan Wangji's piano.

3. Expressions and eyes: When drawing Wei Wuxian and Lan Wangji, you need to pay attention to their expressions and eyes. Wei Wuxian's expression can be more lively and cute, while Lan Wangji's expression can be more calm and deep. Their eyes also need to convey different emotions, Wei Wuxian's eyes can be brighter and passionate, while Lan Wangji's eyes can be deeper and calmer.

4. Background and environment: When drawing Wei Wuxian and Lan Wangji, you can add some background and environmental elements, such as landscapes, buildings, etc. These elements need to echo the storyline and character emotions to create the corresponding atmosphere and emotion.

5. Details: When drawing Wei Wuxian and Lan Wangji, you need to pay attention to details. From hairstyles to clothing textures, from expressions to body language, they all need to be carefully portrayed to make the picture richer and layered.