Very interesting. One side of me would stick to the current design, as it relates more generally to the pervasive healing properties of Rivendell and even Vilya itself.
The other considers the real conceptual meaning and value of this proposal: Miruvor is a renowned reviving cordial, of the Elves of Rivendell, said to renew strength and vitality completely. Moreover, it's told, as I read, that it is a resemblance to Miruvórë
), which is a cordial used by the Eldar and the Ainur during the festivities of Valinor; a nectar from the flowers that blossom in the legendary evergreen pastures of Yavanna.
So, taking into account the elements involved, I would say that the latter side definitely prevails. I'm FOR
Probably, we could also come up with a suitable picture to propose. The graphical motive is prominent too when it comes to spells.