Catwoman: The Animated Series Query and Echo

So while thinking of other characters i wanted to included, and thinking alot about lesser known characters, and some more female characters, Query and Echo were high on my list. they were easy to design, i dunno if i brought anything new to them, but they really would be just background characters.

I also would like to do Sugar and Spice, but is it redundant that Two face and Riddler both have a pair of female "side-kicks"?