Create a vertical 4:5 minimalist doodle travel poster for Karachi, featuring The city of light as the main central illustration. Draw the entire scene in simple expressive black hand-drawn ink lines, like a charming artist’s travel sketchbook. Keep the artwork mostly monochrome, using ONLY ONE accent color: Green. Surround the landmark with playful doodles representing the personality of Karachi: local food, cafés, transportation, street signs, flowers, buildings, animals, people, traditional objects, souvenirs, nature and small cultural symbols. Use different doodle sizes to create a lively composition. Let objects overlap slightly and connect organically with loose hand-drawn lines, arrows, stars, tiny hearts, dots, clouds and handwritten annotations. The landmark should remain the largest and clearest element, while the surrounding doodles create a miniature visual encyclopedia of the city. Use a warm off-white paper background, generous negative space, imperfect ink strokes, subtle paper grain and authentic handmade sketchbook texture. Typography should be playful handwritten lettering: Karachi A Little Doodle of Karachi STRICT COLOR RULE: black + off-white + [One Accent Color Only]. No additional colors. Cute, clever, sophisticated, editorial, whimsical, collectible, modern travel illustration, hand-drawn doodle aesthetic. No photorealism, no 3D, no gradients, no realistic painting, no multiple colors, no clutter.