So finally got around to posting this since it was finished a few days after Halloween. This piece is done by Cacartoon over on deviantart and I am super super thrilled about how well it came out!
I'm going as Ryoma Nagare from Getter Robo Armageddon! (The amazing ova series please check it out if you haven't)
and my brother is going as Sky Captain from Sky Captain and the Wold of Tomorrow, one of his favorite movies.

Thanks again to Cacartoon for this amazing piece, couldn't be happier with it.