City Poster Digital Art Prompt

A highly detailed prompt for Nano Banana Pro to generate a digital art poster of a city. The core concept is a miniature island floating above a sea of clouds, shaped like the city's map outline, incorporating landmarks, culture, and nature. The prompt includes specific artistic styles (Octane Render, DreamWorks), 3D text elements, and a detailed, minimalist information layer for geographic data, creating a high-end, artistic city rendering.