I decided to make up my own little challenge thingie.
Pony Challenge is basically just drawing at least the main ponies (Rainbow Dash, Rarity, Twilight Sparkle, Apple Jack, and Pinkie) and maybe some background ponies
I'm working on Rainbow Dash now, and I've finished Rarity (Uploading next)

Art©/Me
MLP FiM and all the ponies © Hasbro Studios (?)

Other ponies:
Fluttershy: http://www.furaffinity.net/view/7520749/
Apple Jack:
Rainbow Dash: http://www.furaffinity.net/view/7627204/
Pinkie Pie:
Twilight Sparkle: