I hate theme-y names for twins (or siblings), like rhyming names or even names beginning with the same letter. I think it labels the twins as a set, a two-for-one deal, rather than individual people with different personalities.
Leah and
Rachel aren't too bad though. It's subtle.
-
Amy-

"Somebody has to save our skins!" -
Princess Leia Organa,
Star Wars: