Have some sketches!
The first drawing’s of Ayasha and Discord from: http://ayasha-the-pony.tumblr.com/
The other three are fan art for Ponies with Pockets (PierceSmoulder)‘s eighth episode of Doctor Whooves and Assistant “Terror." Their episodes keep getting better and better! I really loved this one, and I thought their way on integrating the voice actor change into the story was very clever.