Use case: illustration-story.
Create ONE original literary cover ILLUSTRATION LAYER, not a finished cover. Exact title and author will be typeset later from font files. Portrait 2:3, exactly 1024 by 1536 pixels, PNG preferred. Flat edge-to-edge paper, no book mockup.
Art direction: quiet mid-century printmaking, broad confident shapes, irregular ink edges, very fine natural paper grain, matte warm ivory (#f1ede3). No more than TWO muted ink colours plus graphite linework and paper. Very few small details. An inhabitable spatial scene with weather, distance or absence, never a floating icon, logo, sticker or decorative emblem.
PRODUCTION COMPOSITION: reserve the ENTIRE TOP 43% (y=0 through660) as empty warm ivory for separate typography. All meaningful illustration occupies y=720 through1330, roughly 47%–87%. Entire bottom 9% (y=1398 through1536) stays clean, empty warm ivory for the author line. Scene may reach left/right edges inside its own area. No border or artificially white rectangle pasted over an image. Quiet space is part of the composition. Coherent at 180 pixels wide.
No text, letterlike marks, digits, signature, watermark, publisher logo, frames, collage, glossy 3D, photorealism, cute cartoon, ornate ornament or heavy distressed texture. No green. Make an original interpretation, not a copy of a published cover.

Work: Fortress Besieged / 围城, by Qian Zhongshu.
Emotional tension: The comic unease of wanting to enter and wanting to leave.
Scene: An oblique overhead view of two adjoining, modest domestic courtyards. Broad low terracotta walls form two incomplete rectangles; their openings are offset, so the eye must turn to pass from one to the other. One long slate-blue wall shadow connects the empty courts. No roof tiles or architectural ornament. The structure occupies the lower middle, x=0 to1024, y=760 to1270, with a little paper breathing through. Not a diagram, not a maze logo: palpable worn plaster, spatial depth, awkward domestic intimacy.
Visual decision: Two adjoining empty spaces with misaligned thresholds and one continuous shadow.
Palette: #9b6858 and #4b5663. Render as restrained printed inks, not glossy gradients.
Omit: Fortress towers, battlements, soldiers, arrows, keyholes, locks, lovers, detailed brickwork.