It’s not a bad photo at all, but given it will be been by literally millions of people, it’s fair to critique it.
I don’t like the exaggerated open-mouthed beams by the children, it looks forced and it’s a bit much.
Presumably both Louis’s crossed fingers and the lack of wedding ring are deliberate. My heart sank when I saw that and realised the frenzy of fresh speculation they’ve decided to cause… I also think the lack of wedding ring is strange because it’s an allusion to Diana, William’s own mother, that they’ve decided not to include.
I’m a few hundred miles north, so can’t judge the greenery. But who wears skinny jeans - so skinny they’re tucked into her boots! - when recovering from abdominal surgery?
Compositionally, I don’t like how the combination of Kate’s dark top and the children make her look a bit buried in the photo. It would be nicer to see more of her shoulders, rather than just her head.
Otherwise, yes, a nice photo, and glad to see she’s doing well!