I don't like either of those names, but upon reflection they seem more I don't know, logical? as feminine versions of
Paul and
Robert. Same way that
Michelle seems more "logical" as a femininization of
Michael, even though it's more elaborated and Frenchified.
Still reflecting, if you really want to delve into it, Charlesetta would be the more literal feminization (damn, that is not an easy word to type) of
Charles, but it's so obvious it grosses me out.
Charlene and
Charlotte are more elaborated, but seem more "logical" to me.
Carla too, though again if you want to nitpick it's more directly a feminization of
Carl. *shrug* I guess this is a case where it's better not to overthink it.