This is a 4 million pixel photo taken by a Hasselblad H6D-400c medium format camera, showing a dreamlike picture. The photos are realistic and ultra-detailed, taken in RAW format with a resolution of up to 8k, making them a masterpiece. The girl in the picture is riding a dragon, with a smile and a lovely expression. Her silver hair was long and flowing, she wore a Taoist robe, and her blue eyes sparkled. The dragon's flame effect is realistic and amazing, and the whole picture is full of mystery and fantasy. The light processing in the picture is also excellent, using techniques such as physical rendering and photon mapping to create professional-grade lighting effects. In addition, the details of the picture are extremely fine, including the girl's facial muscles and dragon scales are clearly visible. Overall, this is a photo with great visual impact and artistic value, which can be used as an 8k wallpaper or official artwork.