Mid-century isometric city travel poster: GPT Image 2 prompt

Create a vertical mid-century travel poster for [CITY NAME] featuring [LANDMARK]. Use a strict 3-color palette: cream paper, black technical linework, and [COLOR].
Style: Minimalist isometric bird's-eye view with ultra-fine hatching and screen-print texture.
Color usage: Solid flat [COLOR] for the entire sky and small accents on roofs or streets. No gradients.
Text: Bold sans-serif "[CITY NAME]" at top in cream, with the local language name in smaller cream text below.