My pony Pentacle from PonyIsland [link] She's my starter (and first) pony I created there. (I'm known as 'PookaWitch' on PI.) At the moment she's actually still a baby, but she'll be grown up in a few weeks, and I would rather draw her as an adult.
That site is SO much fun.. especially for childish adults like myself who spend nearly every day playing with her 60+ ponies when she grew up.
I have more pony pictures on the way as well. This is just my first in a batch.
(I wasn't quite sure what category to put this into. She's my own character from a rpg site heavily based on My Little Pony (but not a copyrighted site). I wasn't sure if she'd be in Misc. Fan Art.. or under Cartoons.. so I figured she's more my own creation then a fan art. )