Our exclusive pictures, which appear in issue number 1111, have sparked debate over the subject of the second-in-line's hair.
Commentators have remarked that it appears much darker and fuller than William's usual look.
Now hellomagazine.com is pleased to reveal more details about the historic photos, which were taken under the guidance of top photographer Rankin by amateur snapper Jeff Hubbard.
Referring to the behind-the-scenes pictures - a Palace aide has told us that these images have not been touched up at all.
Meanwhile, the posed images - which were taken in support of the national homelessness charity Crisis - are all pieces of artwork overseen by Rankin, giving them a slightly different look. The photographer has applied his trademark touches to the finished pieces, the Palace rep confirms.
Lighting and digital touching have all played their part which is standard practice with a piece of artwork as opposed to natural photography.
A spokesperson for photo agency Getty Images also points to the difference between the finished portraits and the snaps taken by their photographer Chris Jackson, who captured the natural, behind-the-scenes shots.
The rep concedes that the hair does look different, though says this makes perfect sense as Chris's pictures are reportage style rather than "high end stylised portraiture."
Don't forget to check back on the site on Friday to see the 'making of' video.
Read the full story and see all the pictures in the current edition of HELLO! magazine, on sale now.