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The "S" on the girl's costume isn't quite right for the House of El.
Maybe as per the show, but the logo isn't wrong by any means.

See here: The logo, from the Fleischer Studio series. which is basically the same as one that used in the comics at one point. ( Superman #4 )

And as a bonus, a link to the history of the S shield logo. laugh

Superman: Why is it that good villains never die?
Batman: Clark, what the hell are good villains?
=> Superman/Batman: Public Enemies