User blog comment:Darkcloud1111/The Rules of Death and The Son of Neptune/@comment-3971001-20110906201548/@comment-3498371-20110907180317

But the children of Minerva can look different than children of Athena. Besides, I think the people on the official pictures are always shown with something that is caracteristic of them. For example Annabeth with her cap, Percy with Riptide or Octavian with a stuffed Teddy. I don't think they would make a picture of Hazel if she just sits on a horse because Percy persuades the horse and she normally isn't able to ride.