Prompt: A happy chinese family of four, the father is 35 years old, the mother is 30 years old, the elder brother is 7 years old, and the younger brother is 4 years old. Their smiles are bright, full of warmth and happiness. The background is a warm family environment, which can be decorated with some household items or decorations. The style is cartoon style, with bright colors, giving people a warm and happy feeling.