I’m not able to do it right now, but what I would try to do with this is a) up the contrast a little b) convert to black and white. If you still wind up with a lot of white sky (per the workshopped version), I would then crop a little of it off.
Obviously, without doing it, I’m not entirely sure what it would look like, but that’s where I would be starting anyway.
I looked at this yesterday and didn’t comment – (guilty look) – I agree with Calina that regardless it needs more contrast..
I would be inclined to try a portrait crop of just the structure and reflection – placing it off centre. If you want to keep it lanscape try cropping off the top third of white sky ??