I see how the fisheye effect gives the impression of a photographer snapping a secret shot, maybe without the subject's permission, but I'd have much preferred to see their faces more clearly.
The vignetting is abit distracting here, and because the sidewalk takes up so much of the frame, it is difficult to distinguish the subjects (which I assume are the people) and what they are doing.
Interesting fisheye and a good image, for the challenge I might have like to see a slightly tigher zoom on the diners even though I appreciate that this would have lost the lovely symettry of the street corner through the fish eye