Rena draws Ponies? How strange of her! I got somewhat experimental with all three of them, and tried out various things. I'm thankful that it all came out as well as it did, especially given how long it's been since I've really done one of these.
In reverse chronological order, clockwise from the top left:
Guillotine These are only for use by the people they were made for. Failure to comply to this rule will result in Derpy crashing through your roof.Sorry Lyco, I still do Pony art.