Phoebe Diana is beautiful. sounds very wise and kind. would definitely suggest that as first pick.
Hattie is cute to me, but doesnt feel so substantial as a full name- it's great if
Harriet is the full name, though. and
Anna by itself is refreshing, but is kimd of meh when paired with
Elizabeth.
as for middle names for
Hattie, if you wanna go with that- how about:
Hattie CynthiaHattie Sophia Hattie LucretiaHattie MirabelleHattie Timea