was this done with a pinhole?

I don't find anything about this to be compelling or very interesting. Just folks out walking the dog.
Those buildings in the back look odd...as if they're getting bigger and more tilted as they go up. Weird!

While walking the dogs is probably an everyday activity for this couple, I think there might've been a more intriguing way to capture them...perhaps them walking toward you.

Now that's a wide-angle lens! This qualifies for Relevance, but doesn't exactly turn me on--except for my interest in your lens. I guess the wide-angle effect is the reason you didn't crop a bit tighter to your subject.

Hey - i like their *movement* - in black or white - they all are in the same rythm..

Nice one. If I had to pick one thing that I wish was different it would be the fender and headlamp of the car on the right side of the frame. I wish it wasn't there. Minor issue though for me really.