I'm going through the entries, stopping at those images I feel have had the benefit of an unconventional eye and dwelling a little longer to try to see and appreciate what you saw. This is one of those images.
Positives: Your title works so well, an intersection between person, built environment and light. His gait is particularly compelling with that long stride and trailing arm. The shadows are beautifully projected too. I really like the three short white lines, with the black negative space they bracket the image in terms of dynamic range and add purpose to the somewhat limited constrast offered in the central part of the image. I also like the glass/window reflective elements, it has the effect of bringing you, the photographer, into play and includes us the viewers into the world. As a result this feels a little voyeuristic and furtive.
Critical stuff: Not much at all... Perhaps the top might be cropped a little closer, but that is a trivial thing.
Fabulous composition. Bit of a puzzle, really. Through a window, I'm guessing, which would have some support beams or something to provide some of the natural framing. The symmetry with the van is great, and of course the person is essential. Wonderful how the leaves are lit as well.
The intersection of light and dark, diagonal and vertical planes, lives outside and in. Sweet.