So I've been a staff member over at BronyCAN, the first official Canadian brony-specific convention, since we founded it back in March/April.
I'm currently head of Merchandising, and I also create all of the art needed for various purposes.
Here is a compilation of "site ponies" I've done for our website.
Basically, each page has its own pony on the side that matches the content of the page :3
Anyway, we have since started removing the official ponies (mane 6, Derpy, CMC and princesses) to avoid any copyright issues, so 5 of the ponies near the bottom are original designs created to represent some of the Canadian provinces.
I do not take credit for any designs except the DJ pony in the bottom left, Night Life, who is the official OC of the Ontario Bronies.
Anywho, I'm going to start taking quick pony commissions, so this is the general quality you'll be getting :3
MLP:FiM Ponies (c) Hasbro
Night Life, Kepek, Whitecap, Van Isle and Ocean Pride (c) bronyCAN [link]