Doctor and Derpy- Ready for the Gala

So the sketch was lying around, and I figured I might as well finish it. Fanart of 'Ask Doctor-Obssessed Derpy', both of its story and its excellent artwork. I just love some of the expressions- whoever is behind those, you're awesome! Anyway, link to the Tumblr page: [link]

Sadly I don't have tumblr, twitter or whatever... So if somebody(er, pony) wouldn't mind sending this to them that'll be great