Main subject: French flag tricolor silk, 3D Paris landmark relief sculpture (Eiffel Tower, Notre-Dame, Sacré-Cœur, Seine River, bridges), ceramic texture and metal luster sculpture model. Scene: national urban image art promotion poster design. Style: elegant sculptural art style, solemn and poetic, combining elegant fluidity and official image texture. Color palette: distinct layers of blue, white and red silk, paired with ceramic warm matte and metal luster texture, pure off-white background as elegant backdrop. Lighting and shadows: natural soft light transition on silk surfaces, delicate three-dimensional light and shadow on embossed landmarks, metal local reflection accents, overall soft and high-end lighting. Composition: tricolor silk meanders like a river, with delicate mini Paris landmark reliefs inlaid on it, off-white solid background sets off the main subject, smooth lines and elegant composition, no text in the image. Purpose: urban cultural tourism promotion poster, art exhibition main visual, international cultural exchange backdrop, high-end French-style decorative visual base image.