Oh im not into those nazgul, in the movie they have really long hoods with no end, wich is what gives them that creepy look.
Using the current lego hoods seems like an easy solution to nazgul minifigures, so far it seems lego is gonna do the same wich really is a shame. PICTURE
You can see the same thing with the witch king, how hes mask/crown/helmet is very long. picture
Looking forward to seeing more figures from you, and espeacialy buildings.