I think this should would have looked a bit nicer if you had moved closer to the tracks. The tree in the foreground does not add to the composition. If you had been a bit closer to the tracks, you could have used them as a leading line to draw the viewers eye into the photo towards the skyliine.
Hey a fellow Calgarian, I'd recognize the C-train anywhere. Nice shot, the tree in the foreground would have been a whole lot better with autumn leaves on it, but that's out of your hands right?