[Dabhand16]

When you say there is something off, I think you mean that it does not look realistic. Geir has improved the flatness of the original, but yet the artificial effect remains.

I think this is because in nature, mist is not uniform. It is patchy and uneven. I don't have much time on my hands at the moment, so can't have a go myself, but I think what is needed is a swirling, uneveness added to the mist.

If it is done on several different layers this will be easier to do.