YouTubeトーク — youtube bts insets

デザインの裏側、全部見せます。：over-the-shoulder main photo plus two small process insets; headline in a black footer bandを核にしたYouTubeトーク用バナー。

IMAGE MASTER PROMPT

Japanese 16:9 horizontal talk-show promotional banner and YouTube-ready thumbnail. Exact headline: 「デザインの裏側、全部見せます。」. Exact program label: 「BEHIND THE SCENES」. Scene: Japanese designer at monitor and pinned printouts, no readable brand. Distinct layout: over-the-shoulder main photo plus two small process insets; headline in a black footer band. Palette: soft gray, black, acid yellow. Contemporary professional Japanese editorial design, photorealistic anonymous Japanese adults, believable anatomy and natural expressions, strong mobile readability, exact legible Japanese headline, clear space for replacing guest name and episode details, controlled hierarchy, commercially usable. No real celebrity likeness, no logos, no watermark, no fake extra text, no jagged brush edges, no torn paper, no grunge, no neon glow, no clickbait arrows, no shocked-face cliché, no surreal effects.