Develop a realistic 4K image of the Great Wall of China under construction

Develop a realistic 4K image of the Great Wall of China under construction. Workers should be wearing Personal Protective Equipment (epis) in blue color, with the name 'URBPLAN' written in white on the helmets. The wall should be partially built, with workers positioning stone blocks and operating tools. The image should have predominant colors in shades of blue, creating an environment that blends the historical with the modern, Maintaining a high level of realism