photorealistic, 8k, realistic, highly detailed, ultra realistic, shallow depth of field, natural light, documentary, a giant turtle with an entire city built on its back, predominantly blue and gold colors, solemn and mystical atmosphere, intricate patterns and mechanical decorations on the turtle's shell and body, turtle with blue eyes and a calm expression, the city on its back consists of densely packed medieval European-style buildings, natural light coming from above emphasizing shadows and highlights, a fantasy scene set against a deep ocean background --ar 9:16