1: No, name tags don't count towards the 1k!
Does not count against the 1.000 word limit:
- name tags, so long as they are not directly conveying narrative
2: I think this a "to what degree" kind of situation-- individual changes of those features is fine, changing the base head to swap out to an entirely different head is not.
3: Under illustrations, but applies to sprites too:
Illustrations (CGs) cannot:
- show a silhouette next to a fully shown character
(The exception to this being if you achieve this affect using the sprite in-engine, in which case it's allowed as you're not using an additional asset.)