The city of Ottawa is quite well provisioned with public art. Some pieces, like the wooden spiral in the park near the mint, are quite charming. The piece above, located in the US embassy compound, is probably the worst of the lot.
As you can see, the sculpture looks a bit like a balloon animal where the balloons have been replaced by black steel beams and the angles have been randomly altered by twenty or thirty degrees. Sitting within a perimeter fence that never contains a visible human, the statue also symbolizes how faceless and harsh the whole compound is.
While concerns about security are obviously of enormous importance for an American diplomatic facility, nothing about them seems fundamentally at odds with good taste. A less ghastly bit of art, and an embassy that somehow demonstrates that the United States is a nation full of people basically just like Canadians rather than an imposing neo-military facade, might be a start along that road.
P.S. In the spirit of fairness, it should be noted that the British High Commission is equally externally unpopulated and far more lacking in architectural virtue.
P.P.S Two other statues notably for their oddness and lack of aesthetic appeal are the strange rocket ship / polar bear statue at the building formerly intended to become city hall and the giant evil spider outside the National Gallery.