I see what your mean. Maybe it's just her age and not liking to especially be the center of attention. I did see a picture elsewhere - don't remember where now - in which her brothers formed a line behind her and were holding her up horizontally. Hope that makes sense. It was a cute funny picture of the 4 of them. Here it is. I found a link to it and a few other pictures

https://www.newmyroyals.com/2026/05/official-photos-of-countess-athenas.html