I used a 28mm prime lens wide open (f2.8) to create this image. I focused on the post which is about 1/3 into the image which is the normal thing to do. Still I am wondering how the image would have turned out if I had focused in the center of the image at the peak of the fence.
Those kind of questions are important for every serious photographer. The snap-shooter would have turned the camera on automatic setting and shoot the image and he would have gotten a good average image these days, but the serious photographer reflects on his shots and goes out a second or third time to get the image he envisioned in his head.
Enjoy and keep on photographing!