I also like the original color best. For me it's the appeal of the subtle colour contrast between the colder blue slate and the warmer tan stone.What bothers me in the composition is the slight slant of the roof line you see near the top half left edge. It detracts from the for the rest very nicely build up of lines. Don't know what you could have done differently, but just wanted to mention it. Overall I still think it's a nice picture.
I would have gone with a version something more like this.all the bestPhotobloke
That's just what I wanted to try.