I love Melian's brave acceptance of fate, it shows a wonderful humility and love. And your word useage is flawless, save for a little typo at the end "won" is "one" but still, the imagery is beautiful and worthy of the Professor.

Yeah, she would have known, wouldnt she?

Wonderful story! I'm glad one of Luthien's parents isn't being unreasonable, even though Melian's as frightened for Luthien as Elu is.