It's about time I updated this ^^ Here's the voices I've been working on as of late :D
In order of appearance:

Pinkie Pie
Apple Bloom
Mayor Mare
Ms Harshwhinny
Princess Celestia
Princess Luna
Scootaloo
Granny Smith
Gilda
Maud
Aloe
Sunset Shimmer
Trixie
Queen Chrysalis

Art provided by MyLittleGlad0s, Thank you!
http://mylittleglad0s.deviantart.com/art/Magpiepony-480139480

And of course, Pitch cleaned up the vocals and such ^.^