How'd you get it without any cars! Good one. While the sky wasn't your friend that day, and I think the colors are deeper, it's a nice shot that tells a good story.
The buliding seems to have nice rich colors to it but the photo dosnt quite seem to bring them out .The compistion is very good and the buliding itself looks very interesting.
For this photo I would suggest moving way back, then using the appropriate lens to fill the frame. Looking up on this building, gives the photo a weird look, converging lines. Keep the camera level =)
Converging verticals really makes this feel as though its a pyramid. Try getting a little higher when taking these shot. Wide angle lenses really suffer badly from this effect.