Subject: Miniature model of the ancient Tianan Hall of the Temple of Heaven, triple-eaved circular pointed roof, paired with gilded finial, red walls and blue tiles, doors and windows set on the hall body, the building base is a circular platform with multi-layered marble railings, showing the state of being under construction. Scene: Construction site of the ancient Temple of Heaven building under construction, surrounded by wooden scaffolding, construction wood, stacked stones and brick materials, also including miniature human craftsmen, miniature horses pulling goods and wooden carts, the site is laid with architectural blueprint papers as the base. Style: Realistic miniature sand table style, integrating the engineering drawing format of traditional ancient architecture construction drawings and the real texture of three-dimensional models. Color tone: Mainly the blue, red and wood colors of ancient architecture, matched with the light gray building materials color of the construction site, the background is a light beige paper base tone, overall the colors are elegant and harmonious. Light and shadow: Soft and uniform natural diffused light is adopted, the light covers the entire picture, the light and shadow in details are delicate, highlighting the three-dimensional structure of the miniature model and the layering of the scene. Composition: Centered symmetric composition is adopted, the main building is located in the center of the picture, engineering drawing elements are distributed up and down, construction scenes are arranged evenly on the left and right, the visual balance is harmonious, and the core content of architectural construction is highlighted. Purpose: Used to show the construction process of traditional Chinese ancient architecture, with both science popularization display and creative visual performance functions.