Istanbul Vintage Stencil Architecture Poster

Create a vertical 3:4 retro architectural poster dedicated to Istanbul in the first half of the 20th century, in the aesthetic of vintage stencil and silkscreen printing.

TYPOGRAPHY
Place the large heading “ISTANBUL” in the upper-left corner in bold, tightly compressed, all-capital sans-serif lettering. Directly below, place the smaller subheading “HAGIA SOPHIA AND THE BLUE MOSQUE — BOSPORUS · 5:50 a.m. · 1934”. Preserve a clear hierarchy and generous white space around the text block. Make the typography feel like part of a historical editorial poster, not a modern advertisement.

CENTRAL SUBJECT
Use the supplied photo as the central visual subject. Preserve its recognizable shape, silhouette, and defining features while adapting it to the retro stencil-print aesthetic.

COMPOSITION AND ARCHITECTURE
Place one large, flat, geometric disk behind the subject’s head or upper portion. Use it as a compositional anchor that separates the subject from the architectural background.

Build the background in even, flat spatial layers without a pronounced vanishing point. Show the old city’s hills, dense low-rise buildings, roofs, and coastal districts as simplified architectural blocks. In the middle ground, include recognizable, massive flat silhouettes of Hagia Sophia, the Blue Mosque, Galata Tower, minarets, and Bosphorus coastal buildings. In the foreground, arrange rhythmic poster-like elements such as stone pavement, arches, lanterns, balustrades, pier details, Islamic ornaments, domed bases, and architectural fragments.

If appropriate, add historically suitable details such as light sea fog, morning steam, distant roofs, thin wires, sparse boat masts, seagulls, or tower elements. Render clouds, fog, smoke, and steam as dot clusters with soft outer boundaries.

PRINT TREATMENT
Use the look of vintage stencil and silkscreen printing from the early to mid-20th century. Model tone only with dots, halftone, and print density: dense dot clusters for deep shadows, sparse dots for light areas, and large grayscale rasters for midtones. Do not use smooth digital gradients or photorealistic soft shadows.

Add slight misregistration between printed layers, subtle color shifts, rough edges on individual shapes, visible paper grain, and a delicate woven-canvas texture. Keep contours clear, graphic, and mostly black, with consistent visual density. Keep the architecture recognizable but greatly simplified into poster-like geometric forms.

PALETTE
Use exactly four high-contrast colors: deep turquoise blue-green, warm old-paper light ivory, saturated inky black, and terracotta red. Do not add other colors or shades. Create intermediate tones only through dot density, screens, strokes, and layering of these four colors.

Overall character: historical architectural poster, museum silkscreen, vintage urban graphics, archival editorial illustration, clear geometry, powerful architectural silhouettes, abundant negative space, limited palette, and tactile printed texture.