Here is a list of fearful things: the jaws of sharks, a vulture's wings, the rabid bite of the dogs of war, the voice of one who went before. But most of all the mirror's gaze, which counts us out our numbered days. [abarat, days of magic nights of war]
This weekend a friend was looking through some of my images, and he described one as being "balanced", by which he said he meant that the image had equal areas of light and dark. I didn't know about this until three days ago, but I knew I liked the image. I'll say this about your image: It seems likewise balanced with equal pars building and sky. The geometry of the building contrasts well with the blue expanse of sky. I think you were more than lucky - I think you made a good snap decision, and composed your shot very well. I think you have a cute dog too.