极简旅行海报模板

A flat minimalist travel poster for the city of [City Name], featuring a stylized illustration of [Main Subject].
Use clean vector shapes with a playful and simplified silhouette.
Bold sans-serif text at the top spells the city name, with a smaller subheading beneath.
Apply a [Color Palette] color palette consisting of 2–4 saturated, high-contrast or pastel tones.
Use a solid color background and avoid gradients or shadows.
Poster design should evoke modern wanderlust and pop art poster vibes.
Image ratio is 2:3.