Jim - I'll answer your question in the hope that it isn't a fishing exercise for a compliment, and I'll start with a compliment. I love the form of the picture, it is intelligently made with the kind of consideration that good view-camera photographers put into their work. The form of the building is presented square-on and honestly, while the energy of the image rips from left to right with wind and arrows; the exception to that energy direction being the cars battling the wind in an effort to get out of the left hand edge of the image. These elements are formal fun for my imagination as are the separations of other elements of the picture from their surround; the tease of flag, lights, wires, arrow - how the left hand flag and arrow owns their space within the image...... What is wrong with this shot?....
In this instance I'm not too concerned about colour or sharpness or sharpening etc. given that I'm viewing the picture crushed into an alien colour space in a web browser and my imagination desires a beautifully mastered file made into a beautiful print on a wall. It is a finely made image, you should be proud of it. However, what is wrong with it [as you invited] is that the subtle photographic honesty of the image has had the crap beaten out of it with heavy handed darkening of everything except the centre of the image. The vignetting looks silly and obvious, and suggests the centre of the image has overwhelming importance. That interesting 'escaping car' on the left, and the tears in the flag on the right are elements that could be informing the overall content of the picture but are burnt down as if they are of little importance - as are the background flags lost in the darkness of the right hand side.
I really like this picture, but it deserves a sympathetic rendering. For me, the image begs treatment which will allow all the elements of the image to riff with one another; that will be far more interesting than being invited to ignore the unsubtle darkness of your edges and concentrate on the middle. If we play with Mr. Adams notion of the 'capture' being the 'score' and the presentation being the 'performance'; I think you have a tremendous score waiting for a tremendous performance.
Respectfully ....................... Chris