Image-led short-form teaser built around restraint, pacing, and an earned emotional turn. Focus on withholding information, visual tension, and a late narrative reveal rather than exposition.
The dark-background rule is the one I'd want numbers on before committing to it. A big share of the audience is browsing in dark mode, where a dark thumbnail sits against a dark UI and loses its outer edge entirely, whereas the yellow one here keeps its shape in both themes. Do...