Attention is easy to win and easy to lose
Many images are designed for the first second. High contrast, dramatic light, big emotion. They work well for stopping a scroll, but the effect can disappear just as fast. The viewer registers the impact, and then moves on.
That is the problem in places where decisions are made. A project page, a licensing page, a proposal deck, a hotel brand site. In these contexts, the viewer is not looking for a visual hit. They are looking for clarity. They want to feel that the message is controlled and reliable.
Real impact starts after the first second, when the image still feels steady and relevant inside the wider context.