A China girl carrying a backpack is riding a bicycle, and her back is full of vitality. The background is beautiful country road, blue sky and white clouds, Dramatic cumulus clouds fill the sunset sky, the afterglow of the setting sun sprinkled on the fields, green trees lush. The atmosphere is relaxed and comfortable, with bright and rich colors, with red, yellow and blue as the main colors, soft and natural light, and the picture quality is high-definition, 4K