段ボールで、街を建てよう。

親子建築ワークショップ。目的を「予約獲得」に固定し、価値・日時・行動の三段階で視線を設計。

IMAGE MASTER PROMPT

Create an original award-quality Japanese A4 portrait family workshop flyer, 3:4, for reservations. DESIGN PURPOSE: reassure parents while making children eager to join a weekend architecture workshop. Exact headline: 「段ボールで、街を建てよう。」 Exact subheading: 「親子建築ワークショップ」. Three-level hierarchy: first an overhead photograph of four Japanese children's small hands and one supervising adult hand building a clean cardboard city, cropped as a wide oval window across the upper third; second a bold but compact cobalt headline centered in a large warm-white field; third a bright yellow reservation module at lower-left containing 「対象 6–10歳｜定員12組｜要予約」, with date, venue, fee and access in a calm two-column grid. One visual idea: the information grid aligns to the cardboard street plan. Friendly but not childish, professional museum-education design, natural hands, age-appropriate safe activity, sharp details, controlled cobalt/yellow/cardboard palette, generous whitespace. No real child identity, school, organization, sponsor, logo, brand, character IP, watermark, bubbly amateur fonts, random stickers, jagged cutouts, torn paper, grunge, malformed hands or unreadable filler.