Although not perfect from a (classical) composition point of view, I like very much No 6.
NB: do you know that it is not allowed to photograph the Tour Eiffel during the night, as there is a copyright on the lighting ? Another stupidity in the so called country of Human Rights.
The issue is that in France, unlike some other countries, copyright is unaffected by public display of a work. So in France
any work of art is in exactly the same position as the lighting display on the Eiffel Tower:
unless it is fair use, you cannot photograph it and the fact that it is publicly displayed is irrelevant. Except for buildings and works incorporated in buildings, that is also the law in the USA. It is only in Britain and a few other countries that you can photograph
any work on permanent public display.
However, you can photograph publicly displayed copyright works in both France and the USA if that is incidental to a photograph of the area as a whole.
Another important aspect of French copyright law - which should be imitated everywhere - is strong "moral rights of authors". These rights, unlike copyright, are perpetual and inalienable. They give authors the right to withdraw a work from sale over a copyright owner's objections and to prevent use of their work
including by copyright owners in a way that is demeaning or derogatory.
