Movement of the Fog

It was my third and last morning during one of my photography trips. I was camping near this scene and previous mornings unfortunately the fog didn't happen. I had this vision in my head for a long time to capture something like this and finally it happened. Photo is taken from a tower with a 600mm focal length lens and the exposure was 2,5 seconds. The movement of the tower made it harder to capture but in the end I think it came out pretty good.