Thank you very much, Vector, I'm glad you enjoyed this thread
There are many reasons why the Light of the Two Trees and the Two Trees themselves are the pivotal and archetypal theme of Bliss/Splendour – and the consequent loss of it due to the actions of the Evil – which is periodically mentioned and remembered in the Silmarillion, via the Eldar's words and memory.
Simply, the Two Trees are unanimously recognised as the greatest creation of the Valar; something that gave birth again and spreaded the Good in the World (within the wall of the Pelóri) after the destruction of the Two Lamps and the relative disaster that affected and marred Arda.
The Two Trees made most of Aman an immortal land, in which the Archangels exactly established their own Blessed Realm.
And,
Tolkien states clearly that the Two Trees (and, obviously, the Valar themselves in the first place) made Valinor even more beautiful and radiant than Middle Earth during the ancestral Spring of Arda, as the quotation in the first post of this thread says
“Behind the walls of the Pelóri the Valar established their domain in that region which is called Valinor, and there were their houses, their gardens, and their towers. In that guarded land the Valar gathered great store of light and the fairest things that were saved from the ruin; and many others yet fairer they made anew, and Valinor became more beautiful even than Middle-earth in the Spring of Arda; and it was blessed, for the Deathless dwelt there, and there naught faded nor withered, neither was there any stain upon flower or leaf in that land, nor any corruption or sickness in anything that lived; for the very stones and waters were hallowed.”
-J.R.R. Tolkien: The Silmarillion-It's thus logical that the Eldar have always spoken about and worshipped the Two Trees rather than the Two Lamps.
The Two Trees are clearly said to be the apex of the Bliss and Splendour of Valinor and of the Valar's authority as well, surpassing both the previous Two Lamps and the later Sun and the Moon.
The Three Ambassadors of the Eldar remained astonished by the majesty of the Two Trees, and desired ardently the attendance of the Valar and their Blessed Realm.
The Two Trees exactly represent for the Eldar their past, and inevitably lost, merriest days in Aman, before the sorrowful experience of the Exile.
And, needless to say, the Light of Laurelin and Telperion is the Light partially contained in the Silmarils, the legendary Jewels that were the symbol and centre of the whole First Age and of the War of the Jewels itself
About that picture of Manwë, I already knew it.
But, I preferred to change it, as I had found it too much Zeus-like (even though this characteristic would have been more than legitimate).
Thank you for the advice, hoho
I already fixed the issue, though, by creating an official account on a reliable picture sharing website.
And, addressing to everyone, I apologise for having not released the update yet, this month, as I had said.
But, I was and am still involved in exams; I will start again working on it soon.