Japanese Ad Poster Grid Collage

{
  "type": "four-panel Japanese advertising poster collage",
  "style": "clean contemporary commercial design, square 2x2 grid, each quadrant is a distinct brand ad with professional art direction and readable Japanese typography",
  "layout": {
    "grid": "2 columns by 2 rows",
    "count": 4,
    "sections": [
      {
        "position": "top-left",
        "type": "skincare advertisement",
        "count": 5,
        "labels": [
          "透明感、目覚める。",
          "肌が変わると、毎日が変わる。",
          "mizuho",
          "うるおい満ちる",
          "ミズホ　スキンケアシリーズ"
        ],
        "background": "soft icy pale blue and white bokeh with an airy luminous beauty aesthetic",
        "subject": "cropped close-up of the lower half of a woman's face and neck on the right side, fair smooth skin, minimal makeup, only nose, lips, chin, jawline, and neck visible",
        "products": {
          "count": 2,
          "items": [
            "tall translucent blue lotion bottle with silver cap labeled mizuho",
            "small translucent blue serum dropper bottle with silver cap labeled mizuho"
          ]
        },
        "composition": "vertical Japanese copy on the left, products at bottom-left, circular badge near center-left, brand logo large at bottom center-right"
      },
      {
        "position": "top-right",
        "type": "ramen restaurant poster",
        "count": 6,
        "labels": [
          "Limited time only",
          "Tonkotsu",
          "Rich",
          "極み",
          "魂込めた一杯",
          "特製ラーメン 980円（税込）"
        ],
        "background": "deep black background with dramatic white splatter texture and steam",
        "subject": "large bowl of tonkotsu ramen viewed at a slight angle from above, rich creamy broth, three thick slices of chashu pork, half soft-boiled egg with orange yolk, bamboo shoots, chopped green onions, and a sheet of nori on the right edge",
        "composition": "oversized white brush-calligraphy kanji stacked vertically, red brush text for emphasis, small red outlined square label in the upper-right corner, bowl dominant in lower-right quadrant"
      },
      {
        "position": "lower left",
        "type": "interior furniture campaign poster",
        "count": 4,
        "labels": [
          "うちに、ちょうどいい、心地よさ。",
          "KURASU",
          "LIFE DESIGN",
          "新生活キャンペーン 4.1 tue - 5.31 sat 10% OFF"
        ],
        "background": "warm beige modern dining room interior with natural sunlight casting shadows on the wall",
        "subject": "wooden dining table with 4 wooden chairs, pendant lamp centered above table, potted plant on the left, framed wall art on the right, table styled with bowls, vases, and small decor objects",
        "composition": "vertical Japanese copy on the left side, brand name at lower-left, white sale box with black text at lower-right, calm Scandinavian-japanese home decor aesthetic"
      },
      {
        "position": "lower right",
        "type": "festival event poster",
        "count": 9,
        "labels": [
          "見て、食べて、体験して。",
          "つながる、ワクワクの2日間！",
          "HAPPY LOOP FESTIVAL 2024",
          "5.18 SAT - 5.19 SUN",
          "10:00 - 17:00",
          "@ みなと公園エリア",
          "Free admission",
          "音楽ライブ",
          "フード＆ドリンク",
          "ワークショップ",
          "マーケット"
        ],
        "background": "bright playful abstract design with large organic blobs and circles in blue, yellow, pink, and white",
        "subject": "6 tiny illustrated people in festive poses scattered around the poster and a small blue food truck at bottom-right",
        "composition": "large bold navy headline centered, pink circular badge in upper-right, event details stacked below headline, four colored category tabs along the bottom edge"
      }
    ],
    "gutters": "thin white dividers between panels"
  },
  "color_palette": [
    "pale blue",
    "black",
    "cream beige",
    "warm wood brown",
    "navy blue",
    "bright yellow",
    "pink",
    "red",
    "white"
  ],
  "aspect_ratio": "1:1"
}