In response to the boilerplate request for permission, Pablo de León said in Spanish: No tengo ningún inconveniente en hacerlas de dominio público. ("I don't have any inconvenience to release them to the public domain")
Argentina has no "freedom of panorama" provision in its copyright law. At least some think there is de facto freedom of panorama in Argentina regarding buildings:
It is uncontroversially accepted that buildings can be reproduced by paintings or photographs, without this reproduction infringing copyright.
Se ha admitido pacificamente que los edificios puedan ser reproducidos mediante pinturas o fotografías, sin estimarse que esta reproducción lesione los derechos de autor.
— Dr. Emery, Miguel Angel (professor of intellectual property law in Argentina), Propiedad Intelectual, Astrea Editors 4th. edition ISBN9789505085231. p.40 op cit