"next time try to get the horizon line straight x"
I could have put a sarcastic reply in the comments, but I'll post this in the journal where I have a little more room.
The key is the tree and the path. The path leads to a perfectly straight tree standing in preparation to the oncoming storm. The horizon was not level because that's the way it was at the time I shot it, the land actually looks like that. Additionally it was left off-kilter to give dynamic feel to the path leading uphill to the tree and then away to the left into the storm.
It can't have been that bad as it earned a DD four days ago!