Prompt
A real photograph in the automotive campaign genre, taken from a camera travelling with the subject: a 35mm lens at a middling aperture on a full-frame chip holds the train crisp while the passing environment streaks into depth-dependent motion trails. A steam locomotive and its first carriages rounding a curve on a high mountain railway, seen from the side from a parallel track, steam streaming back, snowy peaks and a steep drop to a valley beyond the guardrail-free embankment.
Light: clear high-altitude morning sun low from the left, raking the locomotive's boiler and wheels with a bright metallic edge while the snow slope streaks into soft white-blue motion trails and the far peaks stay sharp and pale pink; cold clean grade with rich blacks and a restrained warm accent on the locomotive's lamp; dynamic but refined. No numbers on the locomotive.
Wide 16:9 frame. No people, readable text, signs, numbers, logos or brand marks anywhere; the train carries no lettering or numbers.