He has been scrupulously over-conservative in compiling the map - he has marked only points from which he can actually see the grass of the area to be covered with panels. Clearly once the shiny, black, elevated panels are in place they will be visible from a much wider area.
Andrew has visited each of these viewpoints myself and is more than happy to take others to any one of them. Please feel free to share the map with anyone you think may be interested, or on social media. . here to edit.