Funny stuff. You have the talent to impersonate a young boy with your voice. With a little more practice, you could sound indistinguishable from a child. I would however, focus more on mastering the sound of a boy before trying to impersonate an old man or any other male voice, since a child's voice is the easiest if that's want to want to do.
Ohh thank you, I'm so used to doing anime voices that this was a fun challenge, I have never attempted these sort of voices before so it was different for me. That's a good idea, definitely going to practice a young boy more :] much appreciated.