In Fourthly Puzzled
I imagine Tina would be sounding like the voice actress Erica Lindbeck, mostly the voice talent she did for Yuki Kaizuka in the English dub of Aldnoah.Zero.
Georgia's voice would be like Kody Kavitha who did the voice of Cocoa Cookie from Cookie Run Kingdom.
Rachael's voice would be sounding more like Cherami Leigh who did the voice of Gaige from Borderlands 2.
Lastly, Andy sounding more like Mary Anne Johnson who di the voice of Shouta from Miss Kobayashi's Dragon Maid season 2.
In Human Yet Hybrid,
I would imagine Edwina sounding more like Mae Whitman, inbetween April from the 2012 TMNT and Amity from the Owl House, but almost leaning towards April.
As for Ida, I imagine her voice being Emi Lo who did the English dub voice of Saraphi from Sacrificial princess and the king of beasts, but a little shyer.
Preston's voice I imagine his voice being Fryda Wolff's when she did the voice of the collector from Owl House.
Lastly Tobar, I imagine his being like a nerdy like voice, almost like Sid from Ice Age but a tiny bit deeper.