I think I'd like it better without the fence there. I'm not sure though. It's hard to tell you exactly what I think when I can't see the whole thing without scrolling way over! You should keep it under 800 or 900 pixels in width.
It's ok but I think the shot would have been much better if you had gotten out of the car and stood next to the fence on the far left side. Having the side of the fence showing is generally not as pleasing as showing the fence fade off in the distance. Interesting subject matter though. I took tons of similar shots when I was in Kentucky this spring.