Kannot takes mummy pictures of her children. Her camera has a continuous photo feature and she uses it when she feels that children are doing things that are typical, interesting, precious, or adorable - like all mothers do. Then, when the photo session is viewed on the computer, 5% are 'good' and 1% of those look 'almost professional' and are good enough to share with family, friends and the public through the PR dept.
In that 1%, parents see that special facial expression -- the look in the eye, the tilt of the head, half-smile, tell-tale hand position of mood -- that only close intimates can read. It is that photo that records the child they know so well that they share with those who aren't privy to those most personal expressions. The photo is 'nice' but it falls flat with viewers. The parents are oblivious to their bias though friends will see some spark of the child in the photo.
A photographer interacts with their subject. A professional photographer attempts to keep the child comfortable in their presence while trying to intrigue them with objects that are known to them. The curiousity between subject and photographer is often the expression that is captured and brings forward the natural wonderment that is captured in a photo of a child, one that is expressed as a shy smile or amused facial composition. It is an ''A-Hah'' moment, without bias, that we all recognize.
By this point in time, the Cambridge children photos released to the public will be taken by the mother or grandmother because they have the time and opportunity. What you are seeing is the child's reflection of trust and interest in their most familiar photographers. And this may be a shift in the way that royal children are recorded photographically -- they know the photographer and are reflecting their familial connections in their facial expressions. The 'stranger' photographer has been removed from the photo session.
I won't fault the released photos of George and Charlotte because they are the only photos that will be released to the public. I keep in mind the relationship between the photographer and the subject when looking at the composition. In its own way, these are the 'best' intimate photos the public will see of these children. The photos are just like those we take of our children, grandchildren, nieces, nephews, cousins, friends' children and the neighborhood kids on the days we decide to grab a camera and take a photo.
The alternative is none at all except for the standard public gatherings in the course of the year.