Eddie Mulholland, vice chairman of the British Press Photographers Association, told The Daily Telegraph that Michael Middleton's pictures of Prince George were "lovely snaps" but "not what you want for such a historic picture."
He said: "They are lovely snaps for a grandfather to have taken, but in terms of the quality, they are not really what you want for such a historic picture.
"I would be pleased with them if they were for me and my family, but they look like they have been taken with a mobile phone or a consumer compact camera. It would have been better to have seen it done properly given that this is the official record of the future king."
He added: "The photograph with the dogs is the worst. One of the dogs in the corner looks like a furry rug, and part of the Duke’s head is wiped out by a patch of light coming through the trees."
More top news
A few showers are expected across the west of Scotland tomorrow but elsewhere high pressure remains in control.
Footage posted to YouTube shows the moving moment a nine-week-old boy hears his mother speak to him for the first time.
The tribute song features in the latest installment of the film franchise, and climbed 21 places to claim the top spot this week.