Nice color. Good detail. I suspect some HDR or Topaz, but if used, it was used effectively. Slight perception of the far horizon tilting to the right, but there's so many lines in this photo it's hard to tell if your eyes are tricking you or not. Nicely seen and captured. Good luck.
I love the warm feel of the sky and the contrast of the warf. I would of cloned out the brighter clouds/contra trails but it doesn't take much away from a beautiful shot. Well done!