I simply was pressed for time when I came by here before, but I will say a couple things now:
1. I see the interest in the sky, but how is the composition helping bring that across to the viewer? There are a lot of fuzzy black clouds in the middle, separating two areas of very nice color.
2. When one has such a clear horizon in the photo, given no artistic reason to keep it crooked, straigten it (this is from someone whose photos are almost always 3 degrees off plumb--I guarantee to you that people notice).
I like the colors in the sky, and would have loved to see it, but I feel that there is a huge gap that has little to no interest in between the two extremes of the image.