If this contest was about making a song that perfectly fit an image, I'm sure you'd win. Alas, there are a few things you could work on, such as playing with the dynamics of the droning bass to increase the diversity of the piece. After 3 minutes of the droning bass not changing, my ears started to get used to the texture, and it no longer felt special. One possible thing you could do is to add a section somewhere around the end where the tension of the piece starts increasing.
Would love to hear your work in the film industry one day!