I first adjusted the vertical pitch of the 'grid' to fit the bricks on the right side where the dots are. Then I moved the X and Y coordinates of the vanishing point to get the best fit, as the grid 'morphed'. It is more convincing when you are moving it around. The vertical position is the most important/sensitive, but there you have a good long row of bricks.Bravo, sir. One question:
Did you draw lines along all the mortar lines and see where they meet up, or did you find a point where a few of the lines meet and than draw lines from that to the points at the right?