Sunset's Siren Sushi Shop [Humanized Variant] (Patreon)

The Siren Sisters always reminded me of Azula and friends.

But lately I've come to realize that they also fit the mold of remind me of The Kanker Sisters from Ed, Edd, & Eddy. AND the powerpuff girls. 

Must be one of those Girl Trio Tropes (i.e. The Leader, The Grumpy One, &  The Happy One)