As for a
Bluma living in a German-speaking country:
I've heard people consider and read
BAs for the quite similar (Swedish) Blomma, granted, not all too often, but still. And the name Fee, which is the
German (everyday) word for fairy or pixie, is getting rather popular these days. You'll also find um "golden girls" answering to Elfie, which literally translates to "little elf; little sprite", and of course there are also imported word names like
Fleur,
Fay, etc.
So I'd say if others can use word names... why not a little
Bluma? ;-)
The only combo I personally would avoid is
Bluma Eidel as
Eidel sounds pretty close to our word for "vain". "Vain flower"? Hmmm, naah ;-)
My favourite from your list is
Bluma Zipporah, by the way.