Fresh Portrait: beige shirt with green overalls, calligraphy 'Happy Day' on a red background

Maintain the unchanged facial features and posture of the character, generate a fresh portrait: The character is wearing a beige short-sleeve shirt, with green overalls on the lower body, wearing a green vintage newsboy hat. With a red scarf, a green small bag slung diagonally across the body, and white socks. The background is changed to a bright red, with calligraphy in English 'Happy Day' in the upper right corner of the picture, integrated around the character, soft and even light.