The work will be dressed within the robes of the Order of the Garter, and 20 meters behind the construction a smaller statue of Prince Philip, the late Duke of Edinburgh, will stand.
He will be represented in his naval uniform and at an identical age.
Lord Janvrin added: “We thought it was very important that the statue of the Queen, our head of state, was on the ceremonial route in her own right.
“She will be depicted standing, on her personal.
“But Prince Philip was such an important part – they worked as a team – of the realm that we’ve decided that he should be a few paces behind the Queen, a position he was accustomed to.”
The Queen’s determine will stand virtually 10ft tall (3m) on a 14ft (4.3m) plinth while the statue of the duke will be be 7ft 6in (2.3m) tall on a 4ft 9in (1.5m) plinth.
A bust of a extra mature model of the Queen will be created by the artist Karen Newman and displayed within the reverse facet of the park.
The royal household are set to go to maquettes of the statues and a scale mannequin of the broader memorial on the British Museum on Tuesday.
The memorial is anticipated to be accomplished in 2028.