Individually:
Lucasta - I had never encountered this name before now, but I like it. It really has a lovely sound.
Seraphina - One of my absolute favorites!
Ophelia - In theory it's great, but I don't know if I could get past the association with
Hamlet's
Ophelia and her untimely end.
I think they make a very elegant, sophisticated sibset.
Belphoebe - Don't like it at all.
Phoebe has always struck me as very screechy and ugly, and
Belphoebe is the same.