Number 3 is my choice. It would be better a little, if you try to work with the sky on the right side.
First of all, you can use gradient filters but I prefer to take 3 pictures (with a tripod of course) with different exposure and mix them by the photoshop latelyHow can I improve it? I assumed that as it was so blown, there wouldn't be much I could do? Post Processing isn't one of my talents...