378レビュー・開封サムネイル — 顔と商品を大きく、コピーは一目で

Generate one finished Japanese product review / unboxing thumbnail directly, without explanations or questions.
出力サイズは2480×3508ピクセル、A4縦、300dpiの印刷用ポスターにしてください。
Use a single photorealistic studio-cutout style, full bleed, no mockup or grid. This card is designed for 16:9 landscape.

[Inputs]
Product: "【商品】". This guides the picture, not an extra printed title. If empty, do not invent the owner's product; request a product description.
Headline: "【大きなコピー】". Define HEADLINE once: use supplied text verbatim, preserving every character and punctuation; if blank or exactly "おまかせ", choose one short Japanese curiosity hook without inventing facts. Never print the automatic-choice instruction. Aim for 3–6 visible characters excluding spaces and punctuation. Do not invent prices, discounts, rankings, performance or health benefits. If supplied copy includes an unsupported numeric or efficacy claim, omit that claim and choose a neutral curiosity hook from the product instead.
Expression: "【表情】"; if blank use "驚き". "驚き" means raised eyebrows, wide eyes, open mouth; "がっかり" means raised inner eyebrows and pursed lips; "笑顔" means a warm enthusiastic smile. Keep facial anatomy plausible.
Colors: "【配色】"; if blank use "青と白". "青と白" = deep cobalt background and white headline; "黄と黒" = vivid yellow background and black headline; "ピンクと白" = saturated pink background and white headline; "ミントと黒" = charcoal background, mint accent and white headline. Use a broad simple diagonal accent on the subject side; keep behind-text area quiet.

[Photo rule]
If an attached image shows the owner, preserve that exact person's face shape, eye spacing, nose, mouth, hair and glasses, changing only expression and appropriate studio lighting. Do not substitute another person or beautify away identifying features. If no face photo is attached, invent one original fictional adult who resembles no identifiable creator or celebrity. Vary fictional age, gender and hairstyle appropriately. If a product photo is attached, preserve its visible shape, proportions, color and materials, while removing brand logos and package lettering. If no product photo exists, invent an original generic unbranded item based on the product description, not a replica of recognizable branded product designs or packaging. Both photo types are optional and independent. No real YouTuber or celebrity face; use only authorized owner references. Do not print product names or brand/channel labels. For food-related products preserve physically plausible ingredients and container proportions, and do not invent ingredients, quantities or effects.

[Composition]
Left roughly 48–52% holds one enormous, extremely bold Gothic sans-serif HEADLINE on one line at middle height. Visible glyph height at least 25% of canvas height. Right third holds a close head-and-shoulders reaction face; center-right holds one oversized recognizable product with believable proportions. Product and face together form a single coherent thumbnail, never a collage of alternative designs. Place the product to avoid every letter and the face's eyes and mouth. If crowded, simplify/reduce product before reducing type. Keep all letters inside the central 90% width and 78% height and the bottom-right duration-badge area text-free. Crisp outlines may separate text from background without blurring strokes. Headline must remain readable at 320px width. Hands are optional; if present use natural anatomy and correct fingers.

[Finish]
Realistic skin, product materials and controlled studio light, crisp cutout edges, strong contrast, broad flat background extending to every edge. Render only HEADLINE in Japanese; no subtitles, labels, translated duplicate lines, explanatory notes, UI, play button, price badge, unsupported claim, logo, watermark, signature, margin, frame, letterbox or comparison grid. Preserve complete glyphs, including final consonants where applicable. Deliver exactly one finished image, no code, manual compositing or retouching instructions.

[Final output format]
出力サイズは2480×3508ピクセル、A4縦、300dpiの印刷用ポスターにしてください。
This selected output format takes priority over any fixed canvas size or aspect ratio elsewhere in this template. Adapt the composition, text zones and margins to the selected canvas without stretching or cropping essential content. Device safe areas apply only when a device is selected. Never print these format instructions on the image.