I like your abstract composition and your use of grain here. Most DPC'rs don't like grain(they are sure it's by accident) so good luck with this. It is very artistic...
i think it is a bit over processed, though it seems so on purpose, adding to the effect. I like the shot, In particular the curves over the stairs and at the bottom of the stairs, very nice.
I wish it weren't so grainy. :-/ The contrast is nice, the lighting pretty. I actually thought of aiming down at a flight of stairs myself, though I went with a different concept. :->
I'am for this shot in part because we had close to the same Idea, and I think you did a great job! The curves and contrast work well together. Good Job!
I like the composition, and color. I know you're anticipating complaints about the grain, to which you'll respond that it was intentional - but I think it's overly grained.