According to the rule of hand-held shutter settings, you should be able to use a shutter speed approximately the same as your focal length. In your case, theoretically you should have been OK to lower your shutter speed to 1/50, which would have allowed you to get away with the higher ISO speed since you wouldn’t have had to increase the exposure so much “in post”.
I also noticed that the horizon seems to be a bit skewed, Lightroom’s crop and straighten tool will easily take care of that…
The sky seems to be rather dark too. I would try dropping a graduated filter from the top to sort of even out the exposure.