If you are going for total archery you should switch your ring for
ATAR and add
Nenya +
The Splendor of Their Banners for mass archery when needed
. The ring also helps you to cicle. Definitely add
Phial of Galadriel (
3U24) since you have very few elven companions.
Also i would throw
Arwen, QoEaM along with
Asfaloth (
1U31). Maybe switch her with Cirdain.
Elven Sword always helps a lot (can save your RB neck for sure) and cicles and etc.
I like to mix elven archery with some skirmishing potential but it seems that you are more focus on archery alone. If that´s not true just let me know and i may have some more sugestions for the deck.
For the Nazgul i think you can throw two
Morgul Skulker, i love they hability and use them in almost Nazgul deck, cause you can cut extra copies of some cards (like the ring for example) and put in the deck just the cards you predict that will be more useful in future.