This is a fine, fine image. The blend of sharpness and structure combined with the dynamically blurry elements makes for a most compelling juxtaposition. I'm particularly fond of the guy bottom right and how he draws the eye's attention to the wall and how the wall sends the eye into the far distance to dance across the mezzanine before hurtling back along the line of the information boards.
Your 4/10 exposure time is perfect - I'm surprised; I'd have thought it would need a little longer to get this effect; those folks must be walking with a purpose; perhaps it's 8:03 and they have a ticket for the train departing from track 103.
I'm pleased this did well. A very nicely crafted image.