Very nice as an architectural image, but I really wish there was a large lady in a bright yellow coat, with a red hat and umbrella standing at the top of the stairs. That's just because architecture alone doesn't really do it for me, so I won't penalize you for it ;-)
I am not sure whether there is an unambigious definition of leading lines, but in my book, they should be a line or several lines that lead the viewer's eye towards the main subject of the picture. I think that's not the case in this picture. Your pic uses a vanishing point rather than leading lines.