Thumbnail first-impression card (thumbnails · posters · packaging)

Turns 1–4 images (YouTube thumbnails, posters, packaging fronts, the top of a product page) into an easy-to-read first-impression card — an attention heat-map with the three spots the eye is drawn to first, attention focus, face share, clutter, colour pop and contrast, how the image looks shrunk to phone and desktop sizes, rule-of-thirds placement and a comparison table for several images. Attention is estimated from image statistics, not measured on real viewers. Made for creators and shop owners, not a click-through prediction.