Shanghai New Year Miniature

Present a clear, 45° overhead isometric 3D miniature cartoon scene depicting classic buildings or landmarks of [{argument name="city" default="Shanghai"}] and place them at the center of the composition.
Use decorations, twinkling lights, and suitable [Season, default Winter] or holiday details to depict the city as a festive theme with [{argument name="節日" default="元旦節"}] with decorations, twinkling lights, and appropriate [season, default winter] or holiday details.
Using soft, delicate textures, realistic PBR materials, and soft, realistic lighting to create subtle shadow effects.
Create a small, neatly edged, 3D model city base.
Use a clean background color with [{argument name="節日" default="Yuandanjie"}] to create a sharp contrast with the scene.
At the top center, display text in bold large font 【{argument name="city" default="上海"}】.
Directly below it, in medium font, it displays "[{argument name="節日" default="元旦节"}] Special Edition".
(Optional) Place a small square flag icon below the text.
All text must automatically match the background contrast (white or black).
Composition: Perfectly centered, 1080×1080 square, ultra-simple holiday 3D model aesthetic