Hey there, I'll definitely try out Rarity and Celestia! I really really really really hope their roles aren't taken yet since it'll be 3 days till I get my mic to where I am since I just moved and all.
I'll definitely will be giving this a try! <3 I hope I meet up to your expectations. I believe this'll be quite fun to do since its quite a silly story.
Looks good for your first time, try to adjust the hoof that's supposedly farther than the other one and make it a bit smaller. Also, don't forget the nostril. ;p Hope this helps.