Breaking those "rules" with a centered subject (even if on a vertical third).
And it works just fine.
Nice sweep of lines from the vegetation, folds in the hill, fence, and the tree line on the right leads nicely in as well.
Well-composed and seen.
Scott
Nice moody scene, I like the dark exposure for this. The leading line of bright brush from the right corner, the dark clouds, the tree, the grass, well seen.
You have posted a lot of very good images lately. This is one of my favorites. I like the exposure and the mood. I have no issue with the placement of the tree. I think this is very good and does not need any tinkering.