I like the visual continuity of Charlotte and George having their arms around their parents necks from behind, just like the photo of young William having his arms around the neck of Diana from behind. Charlotte and George being a chip off the old block.
It's also nice that the Cambridges released another photo from their 2018 photo shoot.
Also George is a very talented 6 year old. I couldn't make a card like that until I was about 10.
Lastly, it's so nice to see a tribute to Carole. Often the royal accounts only celebrate the royal relatives (such as birthday posts) and ignore the non-royal relatives. So it's lovely to see a pic of Carole since we know she's such a large presence in her children and grandchildren's lives. On a superficial note, young Carole was gorgeous. She still is an attractive women, but in these old photos it really drives the point home.
Nice to see the older photo of Carole with her newborn daughter Catherine and of course the Mother's Day art is absolutely charming. As a former classroom teacher I remember helping my students create these little keepsakes for their mothers. However I wouldn't be surprised if this was a project that George created while being homeschooled as there are so many great activities with step by step instructions online for teachers, parents and other caregivers to find in the 21st century.
Such a precious video - and wow - little Louis has really grown! I couldn't tell much from the pixel resolution, but from what I can see he looks like George. 
