Michaela doesn’t seem to fit, sound wise, but the spelling does.
Jedidiah is okay, but I don’t like the nickname
Jed.
Hephzibah, I first thought was a boy name, I think mixing it up with
Hezekiah. It could be a guilty pleasure, but is too weird in real life and so is the nickname.
It screams overly religious and I usually am a fan of Biblical names, but these sound a Duggar level family of religious, and I feel like the parents would be very judgmental people.
If I could rename them without going too far off the parent’s style:
Elizabeth,
Jeremiah, and
Catherine.