Wide Angle Distortion

This must be distorted because I thought it needed to be straightened.  When I put the grid on it, I found that the tree in the middle in the distance is perfectly straight.  I think if I was taller this might be more distorted because I was trying to angle down but this was as high as I could get the camera. ;-)  Looking forward to critique and advice on my image.  Many thanks to hobbs for the interesting tutorial and for hosting Wide Angle Wednesday!