Arabella isn't my style...seems dated to me. It's not horrible, though.
Oliver is one of my least favorite names; it reminds me of olives and is very dated to me (though I love the feminine
Olivia).
Stella is gorgeous...definitely a name that I love!
Estelle &
Estella seem more dated to me.
Stella is much prettier.
From your combos,
Stella Monica is lovely imo :-)
Jennifer Nicole

...Loving the Names...
Ariella Faith, Elisabeth Maria, Olivia Jasmine
Cade Preston, Grant Joseph, Jude Hamilton