Hakodate Retro Travel Poster

{
  "type": "Retro minimalist travel poster",
  "format": "Vertical portrait poster",
  "style": "Clean black ink line art on warm ivory paper, architectural sculptural style, precise fine outlines, no other colors besides deep brown-black typography, high-detail urban perspective, nostalgic Japanese travel poster aesthetics.",
  "main_text": {
    "top_headline": "{argument name=\"headline text\" default=\"HAKODATE\"}",
    "subtitle": "{argument name=\"Japanese city subtitle\" default=\"Hakodate City, Hokkaido\"}",
    "bottom_country": "{argument name=\"country text\" default=\"JAPAN\"}",
    "bottom_region": "{argument name=\"region text\" default=\"Japan, Hokkaido\"}",
    "footer_line": "MINIMALIST LINE ART | TRAVEL POSTER SERIES | Hakodate City Tourism | EST. 1854"
  },
  "scene": {
    "location": "Hakodate, Hokkaido, Japan",
    "view": "A single-point perspective facing the street, looking out along the wide city street towards the distant mountains and the central observation tower.",
    "background_landmark": "Mount Hakodate, drawn with contour lines, is located behind the city, with a tall observation tower standing in the center of the foreground.",
    "street": "Tram tracks run through the center of the street, with overhead power lines crisscrossing on both sides. The dense cluster of buildings features shopfronts and vertical Japanese signs.",
    "vehicles": {
      "count": 7,
      "items": [
        "A vintage tram is in the center of the track in the foreground.",
        "There are two cars in the left lane.",
        "There are three cars in the right lane.",
        "There is a car in the distance near the center."
      ]
    },
    "bicycles": {
      "count": 3,
      "items": [
        "There is a cyclist in the lower left corner.",
        "There is a cyclist near the center below.",
        "There is a cyclist near the edge of the street on the lower left."
      ]
    },
    "pedestrians": {
      "count": 18,
      "description": "Simplified figures walking on sidewalks and crosswalks, some carrying bags and umbrellas."
    },
    "major_visible_signs": {
      "count": 8,
      "labels": [
        "Hakodate Morning Market Store",
        "Lucky Pierrot",
        "Shizijie is 3km from the mountain",
        "Kanemori Red Brick Warehouse",
        "City Art City Art",
        "Association Stay",
        "Hakodate",
        "MINIMALIST LINE ART | TRAVEL POSTER SERIES | Hakodate City Tourism | EST. 1854"
      ]
    }
  },
  "composition": {
    "top": "The top quarter section features a prominent, large, compressed sans-serif title: HAKODATE.",
    "middle": "The Japanese subtitle is centered below the main title, followed by a detailed city line illustration.",
    "bottom": "The prominent JAPAN label, the Japanese region code, and the small print at the bottom",
    "mood": "Neat, elegant, travel-oriented, retro-modern",
    "paper_texture": "Slightly grainy, aged cream background"
  },
  "instructions": "Create a clear, monochrome illustrated poster with perfect typography, balanced margins, and highly detailed yet minimalist line work. Keep all text clear and centered, and frame the city illustration symmetrically below the title."
}