Here is a film image from the days of slide film.  Sunset on kokerboom trees in southern Namibia.  The key to sunset images like this are a good, strong shapes in silhouette.  These wondrous “kokerboom” or “quiver” trees (basically an overgrown type of aloe) are hard to beat for having a distinctive shape.

Kokerboom trees at sunset Quiver Tree Forest, Keetsmanshoop, Namibia

Kokerbooms at SunsetMamiya 7. Fuji Velvia.