This melody illustrates several moods and transmits different feelings: starting with a solemn, continuing romantic, ending with the achievement of justice. How can you use this melody?... For movies or videos I suggest several options: 1) for an art house film; 2) for a realistic life drama; 3) as a musical illustration of a video (or home video) about noble deeds, or about sports achievements, or about the beautiful places that you visited during a tourist trip; 4) for the movie in the style of "road movie"; 5) before presentation (or during it) of new products... Imagine such a scene, for example, in a movie or in a theater.
The protagonist experienced a lot of life troubles, the machinations of enemies and other suffering. He won the last battle with the sworn enemy. All wounded, burnt and ragged, the main character rises from the ground with the last forces. He staggers and swings from great fatigue, but goes to... to... Where is he going? Of course, to the final credits! (Well, or to the closing theatrical curtain...) Part of the film (video), where this melody is most appropriate (as the author thinks): the final scene of the film — before the closing credits. (In theatrical performance — before closing the curtain.)
I can orchestrate this melody for performance by a live ensemble.