Hello Marshall,
Interesting to see a pedestrian bridge...with a dividing line!
At your invitation, here are a few thoughts for your consideration.
The first task for a photographer to accomplish when approaching a subject like this is to get past the initial seduction of the geometry and discover a raison d'etre for making a photograph at all. What's really interesting about this security shield? Anything at all? Is it just the visual rhythm?
I don't know the answer, not having visited the scene. But my inclination would be to avoid the perspective you've chosen. It's too common, at standing height and using a perspective that leads the eye to...nothing whatsoever. It also has clutter (cars) that could have been avoided by simply getting that lens lower.
If you're just trying to capture rhythmic pattern exclude the distractions of the road, cars, and background. Just shoot the metalwork.
But patterns broken are nearly always more interesting than solid patterns. Use something to break the pattern, perhaps someone looking over the road below with hands against the grid.
Or perhaps frame a more intimate scene more tightly with the pattern dissolving into background bokeh beyond your subject.
Or look for an opportunity to use the eye-drive to create a more impactful scene.
An example of a similar scene I photograhed five years ago for a magazine. Here's
another example, this time of shooting a compound pattern scene,yes much larger but with the same principles.
So you're close. Explore more alternatives with this scene if you've access to it or to another like it. Concentrate first on framing a compelling image from this subject. When you put the camera to your eye forget the rest of the world. Concentrate solely on what you're putting in that viewfinder and how you're arranging the scene. That viewfinder is all that matters.
