What a sweet moment between Aulë and Yavanna! (Love seeing them working together!)

I like the concept and how you did it, using a fact about volcanic soil and and turning it into this really neat episode with Aule and Yavanna's interaction!

Oh, this is just perfect! Such a lovely glimpse into their relationship, on a few levels — they're so often seen a bit in opposition between his Dwarves and her trees, so it's lovely seeing them work synergistically. I also like your description of flowing rock and bringing in the way Melkor’s destruction is once again brought into accord with the benificient theme of the Music

A beautiful and clever use of the prompt. (Which also appealed to me!)

It's really beautiful to see Aule's and Yavanna's work intersect like this, when normally they're considered as two very separate things. I loved it!

Not only was this beautiful but !!! Valar Singing!!!  I see that so rarely, it's fantastic! <3

I really like this. It captures the spirit of the prompt very nicely.

I love to see Aulë supporting Yavanna so gently. A beautiful work, and nice handling of the prompt.

The relationship between Aule and Yavanna is so sweet! I really love how you have portrayed them! 

....leading to creation and growth is a stunning way to repair Melkor's damage of Middle Earth. Aulë is so happy to support Yavanna as they sing the plants and stones of the world into new and stronger forms.