Brown was nervous during the planning stage, worrying the memorial could be too overbearing or subtle.
But he said now the design has been unveiled, he likes it, saying it will be a reflective spot for people to visit.
The revealing of the design was paired with the blessing of the land it will be built on.
Mauri stones taken from a Hawaiian naval base were buried in the park today.
They were buried to put a spiritual force into the ground which will carry the memory of the more than 150,000 American servicemen and women who served in New Zealand during World War II.