Design a high-end 4:5 collectible postal-stamp visual poster for ISLAMABAD, where the entire layout is one monumental high-luxury postage stamp filling the frame edge-to-edge like a rare national artifact. The stamp should dominate the canvas with oversized tactile perforation edges, sophisticated engraved borders, and immersive object-focused layout. Aesthetic: handcrafted gouache illustration blended with silkscreen visual poster aesthetics, magazine-editorial travel art, and museum-grade print minimalism. The artwork should capture the city’s true atmosphere through architecture, skyline rhythm, transportation, landscape, cultural motifs, climate, geometry, and environmental identity - interpreted in sophisticated graphic forms rather than cliché tourist postcards. The layout should feel dynamic and asymmetric. One dominant city element should rise diagonally through the stamp while secondary forms flow around it to generate depth and movement. Preserve intentional negative space for a polished high-end feel. Exclude clutter and over-finely detailed realism. Typography is a major part of the visual design. The city name “ISLAMABAD” must appear large-scale and integrated directly into the stamp artwork like a high-luxury masthead, partially interacting with the illustration through masking, overlap, or depth. Typography aesthetic should adapt naturally to the city’s personality — polished serif for historic cities, sleek contemporary grotesk for futuristic cities, softer flowing forms for coastal or tropical cities, expressive handcrafted lettering for artistic cities. Keep all secondary typography minimal and authentic: tiny denomination number, SARH ENGINEERING CONSULTANTS text, issue year 2026, serial numbers, microscopic postal marks, engraved information strip, and delicate cancellation details integrated into the borders without cluttering the layout. Illumination should feel like high-end collectible print photography: gentle directional highlights revealing tactile matte paper grain, embossed ink edges, delicate print pressure, delicate shadow depth around perforation cuts, and polished ink density. No film-like film-like illumination. Color palette must intelligently adapt to the city while remaining restrained, sophisticated, and atmospheric: • coastal → turquoise, coral, faded cream • desert → terracotta, saffron, dusty pink • neon megacity → cobalt, magenta, deep navy • historic → olive, parchment, burgundy • tropical → emerald, mango, sea blue • snowy northern → icy blue, muted pine, silver gray Final result should feel like an ultra-rare commemorative stamp sold in a high-luxury museum visual design store — sophisticated, tactile, immersive, collectible, and timeless. Negative: generic travel posters, suspended landmarks, souvenir aesthetics, busy collages, excessive typography, fake vintage distress, stock vector icons, random gradients, low-detail illustration, centered layouts, generic stamp mockups, noisy textures, over-rendered realism.