Being my selfloid, Nanayay has one of my two natural speaking voices; the one she has is what I call my "meeting the parents" voice. It's somewhat nasally, but high, clear and young. Overall. most of her banks will have that clear yet docile tone to them. The normal tone for a young woman. Her voice is far younger sounding than her age.
Joji has my second natural speaking voice or my 'main' tone as what my friends call it. He sounds tired, emotionless, and otherwise indifferent but has that young teenage boy to him. That tone is apparent in all of his banks though his banks do need the assistance of flags to achieve a more masculine tone to them.
Ale has the deepest voice I can make without sounding like a dumbass. She's meant to sound more masculine and strong with her banks due to her being biologically male but still has that somewhat feminine tone.
Sweeny has what I call a 'moe' voice. Her voice is very soft and sweet just to match her personality but can be very upbeat and bubbly as well. The 'loli-ish' sounding tone is a great occurance throughout all her banks to keep up that sweet and innocent tone.