Thank you for updating, Maeve.
Thanks to you for reviewing -it made my day.
The obvious thing to do would be to take him away from his mother...Hmm...
As things are, I think Inzilbêth is barely taken into account as anything but a childbreeding tool- and this by both sides of the conflict. That a seventeen year old girl with no ambition, subtlety or education and no contact with her kinsmen could play an important role in antagonising the child and his father is out of the question for now.
If you whish Melkorism to appear so early, let us see where it will lead you.
Famous last words.
One question remains: OK, sea-gray eyes, sharp nose and dark hair are features of the Andunie line. But how then do their kin the Kings look? Are they universally blond and blue-eyed? Is it even possible considering that Elrond and most likely Elros his brother also were of the grey eyed - black haired phenotype? I would guess that these features were not uncommon among the descendants of Adunakhor as well.
As they will be described later, my descendants of Adunakhôr have: mostly black or brownish hair and black eyes (which sometimes can be brown, too). And their features are thick, not sharp.
Why? To be extremely honest, the main reason is this stupid: I did not want all my characters to look alike. If you look closer, everybody and their dog is from the line of Elros (with a couple of exceptions that will not appear until much later). This is horrible for descriptions.
If we are to pretend we are thinking deeper here, however, I would say that I want to convey the idea of "otherness" of the line of the Kings, or decay, if you will - their blood was once corrupted, and they lost their "legitimating" features. Which in a human world means little, as ideals can change as quick as the people in power themselves change (as in this case, what was once proof of "royalty" is now a signal of evil), but in Tolkien´s Greater Scheme of Things it has a larger meaning.
As for genetics... hmmmh, I don´t feel wholly comfortable with adding such a scientific dimension to Tolkien´s myths. Myth genetics are a stage between science and total chaos, I think -the vague awareness that features are meant to pass through the descendants of a lineage, and that a child that doesn´t look like his ancestors is a signal of something unauspicious. For Tolkien´s scheme of things, Ar-Adunakhôr was definitely something unauspicious, and that he would "interrupt" the genetics of his line is an idea that´s rather mythical than scientifical.
Well, it is a fascinating read. Good luck,