I love
Eva said EE-vah.
Eva said AY-vah makes no sense and you'd be better off spelling it
Ava.
Irene is nice but you'd never get it said ee-RAY-nah.
Irena is a better idea. AY-vah and ee-RAY-nah sound too similar for siblings to me.
Irena Charlotte,
Irene Mathilde and
Irene Camille are all really gorgeous.