I don't know what is it about completely defocused photos. They are rare enough, but they almost always draw my attention and challenge my imagination.
This one, for example, reminds me of the time, almost 40 years ago, when I've been drafted to the military and have been participating in shooting exercises, wearing a gas-mask at the same time. I've been able to see just about that kind of view through the mask's goggles while target-shooting...

I like the general composition and the lights/shadows balance, but I wish the transitions were smoother. They look a bit harsh right now. I tried to add some "black glow" to this image and it worked, but processing a JPG file adds some unwanted artifacts.