Celeste Alexandra is gorgeous.
Celeste was quite common here in the 1990s, and it was a big favourite of mine for a while. Some of my combos (from my fantasy families file) were:
Bree Celeste,
Anna Celeste,
Pia Celeste,
Jean Celeste and
Celeste Sian. I'm still loving
Pia Celeste, although I don't think I'd ever actually use
Pia due to teasing issues.
Celeste is definitely usable, and sweet with a great meaning.
Ivy vs
Eve: I like both, but
Ivy has more spunk and verve than
Eve.