A 6 from me... I love how the image fills the frame. I see that you've leveled the verticals by the left edge... but the eye (or at least MY eyes) goes to the center blue windows and I want them to be straight vertical. Tough choice with so many angles.
All the lines create a superb composition. They really need to be perfectly vertical to be a 10 and a blue ribbon winner! Here the angle of the shot looking up has given the lines of the building a tilt. Getting higher and shooting straight on may not have been possible though. The photo looks a hair out of horizontal rotation too. Excellent color and contrast. Great saturated light with the blue windows cooling it down.