What it says on the tin. Trixie picked the cruelest outfit she could think of to force on poor Rarity. How she knew about the unfortunate taste in fashion of the sixth Doctor is beyond me.
If you fave, please be sure to comment. Like most artists I appreciate feedback, and a comment is more valuable to me than a fave.
Edit: Decided to share this at EQD. Apparently they liked it.
OK, I'll be honest, I was expecting a feature on EQD to get me ten or 20 comments and faves, which is generally two to three times more than I get on an average picture since I'm not as active at posting as some people. But I have to say that I am pretty overwhelmed at what simply suggesting a picture to the brony community can do. This is why bronies are the best fans!