Wide Angle Wednesday: Distortion

I decided it would be good for me to join in as many challenges as possible to push me out of my comfort zone.  Thanks to Hobbs for hosting this one. I wasn't too sure what to do so it forced me to do some reading about wide angle distortion.  I hope I got this right.  Please feel free to be critical so I can learn!  I shot this at my widest angle of 21mm and, with the slope in my backyard, I think it looks even more distorted. Believe me, my new fence is not leaning in the way it appears!

It really needs to be viewed full screen.  :-)