updated 04/28/2014 AT 9:00 AM ET
•originally published 04/28/2014 AT 10:10 AM ET
Simon Woolf says the couple clearly “love each other deeply,” and share a sense of humor and a genuine compassion for others.
Woolf was the official New Zealand government photographer allowed at every event that the Duke and Duchess of Cambridge attended during their nine-day tour of the country.
And it was his picture of little George cuddling into his mum’s shoulder as he attended his first royal engagement – a playdate with other babies – that has been reproduced so many times. A black and white version of was given to Kate, 32, as the family left for Australia.
Woolf says he was told that Kate called the photo her favorite of the tour (though the palace has not been able to confirm this).
In the shot, the prince had just been woken from his nap and was resting on his mum’s shoulder, as a tea party for the Plunket Group playdate was about to take place. “He just raised his head, smiled and dropped his head back on Princess Catherine’s shoulder. And I just got that shot. It was only one shot,” Woolf tells PEOPLE.
This, like other moments, was before the other reporters and photographers had access to the couple. “That photo represented the lovely closeness of the family. I was so totally reassured that it is a great relationship,” he adds.