City Exit Open 3D Poster AI Image Prompt

A youthful 3D poster with a weekend escape theme, mainly using grass green, light yellow, creamy white, and sky blue. The composition features strong perspective and central focus. The foreground is wrapped by plants forming a huge framing frame. In the center is an interesting 'city exit portal'; one side has simplified urban traffic symbols, and the other side opens completely into a natural world, creating a visual contrast from city to outdoors. Behind the door are grassland, lake, hills, tent, sunshine, and a relaxed atmosphere. Two chibi-style young characters run from the foreground toward the center, as if about to rush out of the city into the scenery. The image includes small map, ticket, arrows, flowers, four-leaf clover, stars, sticker lines, and other youthful decorations. The title is written in bold large letters '城市出口已开启' (City Exit Open), with optional diagonal layout and handwritten auxiliary text. Overall it feels light, relaxed, and very suitable for weekend-themed social media communication. The 3D material is high-quality and delicate, with soft and transparent lighting. Do not include brand names, logos, platform identifiers, or real QR codes; the main elements have been redesigned, with no author signature, no watermark, and no real brand names.