You've captured the full tonal range - though the blown out clouds for white is kind of cheating. ;) I'm not a fan of the composition - I keep wanting to turn towards the right a little to have the poles running down the side of the image. I don't think the way they cross half the image and then fade away really 'says' anything.
Well, the power lines provide leading lines into the scene. The exposure is okay. I'd like to see more dynamic light, but the overcast sky may have prevented the desired rich tonal range.