very cool shot, like the effort very much, shows some thought with the set up lighting and shooting. The front most dominos are a bit too bright and out of focus and you might have considered cropping in from both sides and presenting this in a vertical orientation, front want I can see you might have a strong image that way. Very good none the less.
I like this shot, but it seems a little like the perspective is contrived. There don't seem to be enough dominos to result in the narrow space at the end. Don't be put off by the idiots who insist that the photo includes the 'vanishing point' itself.
The lighting is great and the picture stands out on it's own merit.
Would have been better if we could not see from the ceiling that the dominoes actually were getting closer together the farther from the viewr. Cool take on the challenge.