Alright, I'm going to do a simple poll on a couple forums to see out of a few characters, which they would like to see the most. This is going to then most likely influence the costume I do first, out of the ones listed.
Twilight Suzuka (Outlaw Star - yes it will be a crossplay)
Jareth the Goblin King (Labyrinth)
Monarch (Venture Bros.)
If you don't know who any of them are..then just vote out of the ones you do know. I'm not going to provide reference pictures..because, well, I'd prefer to only have people voting for characters they actually know and remember.
*editing*
I just realized I should clarify on..which of Jareth's outfits I would be doing. It'd be the one while they are singing Magic Dance.