立体明信片微缩城市

A highly detailed, photorealistic, Instagram-worthy diorama in the form of an open pop-up travel postcard standing upright on a locally authentic stone or pavement ledge, featuring [CITY], [COUNTRY]. Vertical 3:4 portrait composition.

CAMERA & COMPOSITION (critical):
Static camera at eye level, angled 25 degrees off-axis to the left for a three-quarter view — paper thickness, forward curve, and the horizontal base panel folding toward the viewer clearly visible. The card occupies roughly 65% of the frame, fully contained, with generous breathing room on all four sides and open sky above its top edge. Never crop the card. Vertical fold slightly left of center: flat printed left panel for all text 

Aspect ratio: 3:4
Style: 微缩立体明信片，3D 城市景观