City architecture poster drawn with deep blue lines

City deep-blue ink linework poster

Create an ultra-minimal, high-end city architectural line-drawing poster themed on 【City Name】

Use deep cobalt-blue pen linework / architectural sketches to depict the city's most recognizable streets, buildings, skyline, or natural landmarks. Naturally incorporate representative elements of 【City Name】, but do not pile on landmarks — remain restrained, authentic, and lived-in.

Composition requirements:
Main subject concentrated in the lower ~1/3 of the frame, subject relatively small, with abundant negative space around especially above; overall feel like a high-end architectural travel sketchbook or museum-quality city print.
A small number of pedestrians, bicycles, trams, cars, street lamps, trees, small shops, etc. may appear naturally to give the city breathing life, but figures must not steal the focus.

Visual style:

Deep cobalt-blue monochrome pen linework
Fine architectural hand-drawing with light hatching
Off-white aged paper / premium textured paper background
Low contrast, low saturation
Minimal, restrained, quiet
High-end editorial design sensibility
Architectural travel-sketch feel
Generous negative space
No heavy shadows
No large-area watercolor washes
No 3D
No modern commercial illustration feel
No complex borders
In the blank space below the main image, add a very small city name:

【Chinese City Name】
【English City Name】

Text centered, very small font size. Chinese name set in a slender, elegant, bookish typeface; English name set in a refined serif with slightly increased letter spacing.
Text should be only an accent element and must not overpower the city illustration.

Overall vibe like:
Architect's travel sketch × classical city print × minimalist art poster × high-end paper goods

Ultra HD, finely detailed

Summary

Create a quiet city poster that depicts streets and buildings with thin deep-blue lines, leveraging paper texture and wide negative space.