Kei Yuki (from Captain Harlock) and Count Mecha (from Galaxy Express 999) as cosplayed by Kailee and Rob.
And here are a two original pictures for comparison purposes:
[Source: CrunchyRoll | Via FG]
That's incredible. Whoever did the costumes needs a standing ovation.
Also credit to the photographer for for framing this better than 99% of all cosplay shots, taken on a heavily trafficked sci-fi convention floor.
Holy shit, that is well done
Get me a a Gravity Saber and call the Arcadia, I'm in love!