Could you have moved the sign to the other side of the sunset to get more internal congruence to the image and moved the sign off centre? Maybe that would have meant losing alot of the grass silhouette. Love the colours and the haze.
Beautiful composition. The picture reveals a underexposed sign. A common lack in this challenge. This happen because of metering system. In this type of pictures you need to target the horizon, setup the exposition, lock it, then recompose your scene focus and shoot.
Technical - Great exposure! The disc of the sun is great just peeking out from the horizon and not overexposed either. The position of the clouds actually seem like they are traveling the direction of the sign too, and add a nice texture and color to the scene. The prairie gras also adds a nice texture and some height. The horizon line is unfortunately slightly tilted, and the perspective of the signs also seem to suggest a slanted angle also. It's slightly crowded on the right, which makes it feel a little unbalanced but not overly so.
Personal - It has a great atmosphere to it and wonderful tones.
Overall - It's a great capture, just needed a few tweaks to become a really wow shot.