WDTYO (so-WEN-uh)? I love it. Except it starts with a lady pig, even if that isn't how it's pronounced. I don't care personally but other people might be, er, uncharitable in pointing it out.
Also, any thoughts these combos (or combo suggestions)?
Sowenna
BeatrixSowenna
KatherineSowenna
RubySowenna
Rose
Laura Sowenna
Tamsin Sowenna
Margot Sowenna