Notes:

Creator is WillCayfyeld of Deviantart. Premise here is that the originals have gone missing, and Siren (Callie) and Valkyrie (Felina) have taken over their role in order to save the city from Dark-Kat. Personally, while Felina is perfect for the role, Callie is just a deputy mayor, with no combat or flying training, so I think she's just there for the pretty factor. Still an awesome pic though.