Meh. Too much smoke. I think part of the particular fascination with these comes when you have a delicate thin flow of smoke that seems to have some direction. This is just a bit too much to seem "clean". That and when there are so many of these type images posted you get a bunch more to compare to.
Yep... more smoke. Just there Nice colors and waves of course, but there isn't much interesting in this to distinguish this for the other smoke billows in the challenge.