The bulk update request #2213 is active.

mass update eba_(chihuri) -> eva_(chihuri)
mass update rena_(chihuri) -> renata_alekseevna_tsvetaeva
mass update zoya_(chihuri) -> zoya_petrovna_vecheslova

Reason: On the artist's website says "Ева" (Russian) - Eva.
"Eba (еба)" is short for "ebat' (ебать)" - "fuck".

Renata Alekseevna Tsvetaeva is the full name of Rena.

Zoya Petrovna Vecheslova is the full name of Zoya.

Information about characters

EDIT: The bulk update request #2213 (forum #161710) has been approved by @evazion.

The profile page you linked romanizes the names slightly differently (Алексеевна -> Alexeievna, Вечеслова -> Veceslova), but those appear to be nonstandard romanizations.

The bulk update request #2213 (forum #161710) has been approved by @evazion.