I need to be careful to review the photographer here and not the architect! Although taking a photograph down a flight of stairs may not be the most original, I will give you that this is an exception! At first looking like a line of arches over an ornamental pond, it takes the viewer a while before they see what this truly is. As for the star rating, I couldn't think of a better technique, framing method or post production tool to use that would have done a better job than you already have hence the 5 stars. As I said before you can't be original shooting a flight of stairs but this is the first time I have seen these so you still get a very respectable above average 4. The great lighting and coloured glass really make this something special so big credit to the architect but congratulations are due on capturing his/her work beautifully.