While I like your voice for the mature version, it seems to me that your younger version is not very natural, whereas your mature version lacks the power (especially in the third line).
heh, I gave it a shot but sounding young is not my forte. If you equate "power" with yelling, well if you deliver all your lines "loud" then you have nowhere else to go. I try to convey strength in delivery, intonation and tone as opposed to simply volume. The third line I probably interpreted a different way than you intended. I read it as her possibly being attacked or in some way being made vulnerable. So I was going for fear. Is cool. We can't win 'em all. heh heh.
However, this audition seems to be in line with Teraya. Would you like to try her?
Sorry, I did not see this. Certainly. I can give it a go.