Prompt: \"Generate a WeChat avatar for a Chinese family of four. The father is 39 years old, the mother is 35 years old, the elder brother is 7 years old, and the younger brother is 4 years old. Create an avatar that captures the essence of a happy and loving family. Pay attention to the age-specific details of each family member, including their facial expressions, clothing, and the overall atmosphere of the scene. Make sure the younger brother, aged 4, is appropriately depicted. Aim for a warm and inviting avatar that would be suitable for a family profile picture on WeChat.\" ar-3:4