1. Character image: Zhang Tingyong is a public figure, so the head design should highlight the image characteristics, such as facial features, dressing, temperament and demeanor. You can choose a clear photo of the person as the basis of the avatar, and then do some modification and processing.

2. Color matching: You can choose some bright colors to attract users' attention, such as red, yellow and blue. At the same time, the color matching should also be consistent with Zhang Tingyong's image and brand image.