When I first saw the photo, I immediately noticed that there were two different phases in the picture.
I think it's a combination between calm and not-calm. ( Can't find a better word :P )

In my composition I've tried to combine these two phases, with powerful parts fading into more pleasant calm parts.
I have a melody which goes and comes, and a few other "sub-melodies", if you like.

So, if I would describe the song, I'd say it's a shape-shifting song. Though, after listening to it I'd say it's more of the happy kind.

I hope this will do ^_^;