Stairway

Like the print very much. I don't know if it lost some of the highlights in the scan, but I would like to see the whites pop a more especially toward the top of the staircase and on the right edge. It's hard to say anything critical about this picture. It looks slightly green on my monitor, but that could just be me. The composition is great and the shadow detail looks good. Can you tell me a little more about it? What was your light source? What time of day did you take it? How long did you work on the composition? How did you come across such a staircase?