People who know art history have found many references that explain these photographs.
"The idea that Queen Letizia is "portrayed as a Hollywood star" is wrong. As with the photograph of the king, it follows a very traditional pattern: the queen consort standing, wearing very luxurious jewellery and dress, and without a crown or obvious symbols of her royal status.
Technically, however, things worked the other way around. It was the stars of classical Hollywood who tried to portray themselves as kings and queens. The composition for Queen Letizia would only have been more traditional if she had had her hand on the back of her chair.
She also wears one of the most valuable "passing" jewels of the Spanish Royal Family, which are the "chatons". We have said in the past that they are worth more than many tiaras. This also follows a traditional pattern: valuable jewels, status symbols, and often significant.
We are talking about the "jewels of passing" here. As other royal consorts wore the "Peregrina" or the blue diamond of the Austrias, Queen Letizia wears the "chatons"."
Alfonso XII
Carlos V
Las Meninas
The tradition of Spanish portraiture was to portray the king and queen separately in pictures that are a pair... the photographs of Felipe and Letizia are conceived as a diptych, they must be together and placed in a certain position.
The portraits of Juan Carlos and Sofia for the Bank of Spain also repeat the same environment, and a darker and lighter light.