I think you did a nice job on the exposure and processing, but the subject matter itself is a bit boring. Also I would have either cropped or cloned out the guys head in the bottom right of the frame. This looks like an interesting building though, I bet you could find a better angle.
I like your mindset, I have tried similar things with some pictures.
First off, I think your framing could be better. The two parts of the picture - the clouds/sky and building/bushes - just seem too large and too 'nicely' framed for an abstract shot. Find some new angles and don't worry about showing us the entire structure or the entire cloud, just the parts of each that when combined form an interesting image. You could even try focusing on just the building and the bush, see what you come up with.