What, you've not hear of "purple clouds, majesty"...I 'd move the whole building (if you have it in the frame) as far to the right as possible leaving just a bit of that rail for an anchor point and give the left side some room for the building to "lean" into. I don't particularly like the line distortion, much of which can be eliminated with wide angle lenses if the camera is square to the shot.
I like this much better because of the natural look. I think the first shot is a better capture. Actually I think it is a very nice shot. The composition is brilliant. The leading line are great as well. I just think that when one changes colors in post the shot loses its photographic integrity. It's just an opinion of mine that some agree with and some do not. At the end if the day it's what you like and what your clients like. The rest is subjective.