Changed the angle slightly by .5 degree - the post looked a bit tilted to me. Cropped and used Alien Skin Exposure for the b/w conversion. Toning warm brown setting at 50% with some added grain to the highlights and slight grain to the shadows.
Nicely shot and processed; I like the b&w conversion you chose (so many options in Alien Skin). The range of tones is nice, and the lines give the image some gentle movement from top to bottom.
I love this shot, wonderful dof and the black and white captures a feeling of slightly dilapidated grandeur perfectly...Stangely this feels almost enhanced by the fact that the shot is so sharp and you have avoided going for a noisy/grainy effect
Excellent "post" processing (pun intended). Seriously, you have very fine tones in this image. The marble in the background has that age-old look found in so many old public buildings. Well done.