The colors of the sky are wonderful. It's so crisp, great stuff!
I don't think the bottom left corner is too much of a distraction..I never noticed it till I read some comments =) If you cropped it out, you'd probably want to crop the same amount out on the other side to even up the picture, resulting in taking away from the whole panorama...I use Jasc Paint Shop Pro 8, and there's a clone tool which would allow you to copy the same grass and lightly place it over that small bit of dirt in the picture and you wouldn't take away a thing but thats just a suggestion of course; i love the shot!