Architectural Gouache Illustration of Multi-Level Hillside Walkways

Full prompt

A stylized architectural gouache and ink illustration depicting a bustling multi-tiered alleyway network in central Seoul, arranged in a balanced 1:1 square composition. Bold isometric perspective lines structure the square frame into a dense geometric labyrinth of concrete stairways, diagonal escalators, and suspended steel catwalks bustling with stylized pedestrian silhouettes. Vibrant neon signboards in Korean hang closely from overlapping multi-story building facades, rendered in opaque, velvety gouache washes of cerulean blue, fluorescent coral, matte black, and warm mustard gold. Fine pigment pen linework articulates intricate structural details, including conduit pipes, corrugated shop canopies, and safety railings, evenly filling the square canvas with rhythmic urban density. The subtle grain of textured watercolor paper shows through the matte gouache, creating an artisanal, high-contrast graphic display of compact metropolitan verticality.