Lamb sounds too human

If she / he is a celestial being, I feel like Lamb just doesn't sound "astral" enough. I mean, bard doesn't even have language, and he has an amazing set of sounds that really give the incomprehensible feel. Wolf definitely sounds more, out there, but Lamb just sounds like a regular person, no echo to the voice or anything. I think it would be way more mysterious and really add to the character to have some expanded vocal coloration. Not that the voice actress for lamb is bad, she's amazing, but some eeriness would be cool.