I can very easily understand that the Princes of Asturias didn´t publish any photos of Leonor at her second birthday, they probably think that she has had enough publicity this year.
I remember seeing photos of Leonor in March with Queen Sofia at the iceshow, in April with her parents in Faunia, in May three times (two times visiting Letizia and Sofia and the day they were released from the hospital), in July at the christening of Sofia and at the end of July photos from three days of the vacation. In August there were photos of Leonor from three days at the vacation and the royal family photoshoot in Marivent. In September the photoshoot of Leonor´s first day at school and in October the photos from the family´s visit to the zoo.
I think there has been enough photos of Leonor in the media this year.