A gallery image type that shows the product's outcome by contrasting a 'before' state against an 'after' state (e.g., a messy surface vs. one cleaned by the product), used to build trust and make the benefit concrete without relying on a shopper's imagination or a written claim.
Apply: stage a genuine before/after pair for products with a visible before/after result, and pair it with a demographically representative model where a person is shown using the product, so the intended shopper can see themselves in the result.
Frame the before/after pairing explicitly as visual testimony — the visual equivalent of a review confirming the product works — rather than as a neutral illustration.
Apply: use this framing for any product marketed as solving a specific, visible problem (e.g., posture before/after a back brace); the 'testimony' framing is what justifies pairing it with real or representative before/after evidence instead of a staged product-only shot. See Information vs. Testimony Framework (Synthetic Imagery Compliance) for the compliance line between synthetic and testimonial imagery.