They're all nice. I wouldn't mind having 3 daughters with these names. I'd probably call
Antonia Toni sometimes.
Irene makes my shortlist regularly. The other two are just niceish. I always like
Cecilia more than
Celia, but I met a
Celia recently and she works the name really well. She's, like, normal and graceful.
When I don't like
Antonia, it's because it's too cold. I think I prefer it as a middle name?