One review is a claim; ten stacked five-star cards is a verdict. Density does the persuading.
Vertical 4:5 static ad: a wall of overlapping five-star review cards, styled like a flat-lay of pinned receipts. Background is a solid soft cream. Eight white rounded-corner review cards sit at slight 1-3 degree angles, edges overlapping with soft realistic drop shadows, filling the frame so outer cards crop off the sides. Every card shows five gold stars along the top. The center card is largest and perfectly straight, reading: "I have repurchased this five times. FIVE." — Dana R., with a small green "Verified Buyer" tag. Surrounding cards read, verbatim: "Why did nobody tell me sooner?", "Worth every penny. Every single one.", "My husband keeps stealing mine.", and "10/10 no notes". A cutout photo of [PRODUCT — e.g. "Fruune, a berry collagen gummy jar"] overlaps the center card at bottom right with its own soft shadow. Along the bottom edge, a slim dark banner in clean geometric sans-serif: "12,417 five-star reviews and counting". Typography throughout is a modern sans like Inter, generous letter spacing on the banner. All text razor sharp and correctly spelled — no lorem ipsum, no gibberish micro-text, no warped letters, no watermark, no real brand logos.