Image-generation prompt to capture urban everyday life in cobalt-blue pen drawings

Urban cobalt-blue ink linework poster

Use 【City Name】 as the theme and create a minimalist, high-end city architectural line-drawing poster.

Use deep cobalt-blue pen linework / architectural sketching to depict the city’s most recognizable street(s), buildings, skyline, or natural features. Automatically incorporate representative elements of 【City Name】, but do not pile on landmarks — remain restrained, authentic, and lived-in.

Composition requirements:
Place the visual subject concentrated in the lower ~1/3 of the frame; the subject should be relatively small, with generous negative space around it, especially above. The overall look should feel like a high-end architectural travel sketchbook or an art collectible city print.
A small number of life elements may naturally appear in the scene — pedestrians, bicycles, trams, cars, streetlights, trees, small shops — to give the city breathing space, but figures must not steal focus.

Visual style:

Deep cobalt-blue monochrome pen linework
Detailed architectural hand-drawing with subtle hatching
Off-white antique paper / premium textured paper background
Low contrast, low saturation
Minimalist, restrained, quiet
High-end editorial design sensibility
Architectural travel-sketch feeling
Ample negative space
No heavy shadows
No large-area watercolor washes
No 3D
No modern commercial illustration feel
No complex borders

In the lower blank area beneath the main subject, add a very small city name:

【Chinese City Name】
【English City Name】

Center the text; font size very small. For the Chinese name use a thin, elegant, scholarly-style typeface; for the English name use a refined serif and slightly increased letter-spacing. The text should be a subtle finishing touch and must not overpower the city illustration.

Overall effect: architect travel sketch × classical city engraving × minimalist art poster × premium paper stationery

Ultra-high-resolution, finely detailed

Summary

In the prompt, replace the three occurrences of 【City Name】 and the one occurrence of 【English City Name】 with the name of the city you want to create, then run it in an image-generation AI.