Music Creation Ideas

I have been unable to create any music for the trailer as yet, due to some film elements still needing completion and therefore incurring problems with timings in the music. 
However I have been able to take some ideas and experiment to see how I might use them within the trailer when able.

Idea 1

• One idea I have had is for the first scenes with the balloons and park.
• A repeated chord of G major played at different octaves could modulate to it's relative minor (E minor) towards the end, suggesting the move towards darker elements of the film. 
• When the second text comes up for her at eighteen the music could 'slide' down, imitating the idea of her falling into the hands of her eating disorder