Some nice looking art, design stuff and such as an extra on the 7th disc of the blu-ray for the 1st and 2nd season of the anime. I like. Especially Nova, Iczer references and Obari. Ahem. Anyway, if you're a fan of the series then you'll probably want to take a look at these. There's also some storyboards in there including the intros and outros so they'll be worth a look, too. I'll drop a few pics below. Enjoy.