Amazing footage Ben! Really great!

Since you probably took the photos horizontally and you cropped 16:9 out of the originals. You might consider using the rest of the cropped out space to "fake" a panning motion from below to up top or something. I know your time-lapse already has a lot of motion in it, but you could try to make the foreground move as well. Even if it's just a little bit. I think it would make it even more interesting.

I don't see any noise banding or whatever so I don't know what that is about I do see some delays in your video though. It seems like the video is held back every second or so. Like you miss a frame or something. Could it be that the buffer in your camera was full at those times? Is it a natural phenomenon? Or is it just a post-processing effect?

Anyway the footage looks simply amazing. Please continue and show us more