Great lines and shapes. Ideal crop. Could/should it be brighter. I somehow feel like I'm looking at it through a dark tube or through sunglasses; that metal and glass should be gleaming.
Thanks for the input. It's actually a grey building and I used a polarizer to kill glare from the building. I'll need to go back and see how much I can lighten the building before I start to lose contrast.Edit - not much . As soon as I lighten the building I lose texture in the building panels.
It seems like those panels are about 85 to 90% (10 to 15% below pure white) – have you tried raising just the Whites and reducing the Highlights (assuming you are using Lightroom)? That combination helps to maintain highlight detail and adds sparkle to the image without reducing contrast (it actually increases it).