Sindy - I love this image. The range of tones (mid-grays) is very good. Perhaps the most important technical thing you did really well was keeping the railing straight at the bottom of the image. Also, I think you did a very good job balancing the light. This was a difficult scene for balancing the bright sunlight against the darker areas of the stairwell. There are a few steps that have lost some definition, but overall it's not too much of a problem. But what I really like is the level of detail on the bottom floor.
My only criticism really isn't much of a criticism. It would have been nice if you could have included more of the bannister in the upper-right part of the image, but if I had to guess, this was as much of the scene as the lens could capture.