I think your choice of using sepia was a good one..the extra wire suggests more work to be done - never ending on ranches - If you had taken this shot from a different angle with less grass/plants, I think it would have been more effective
I like the tone and subject of this image. Kind of wish it wasn't squared out. I think a more landscaped presentation would suit the lines in this better. JMO. ;^) Good luck in the challenge.