Born to Kyoko Zeppelin Soryu, a prominent scientist in Rapture, Asuka's earliest days were careless and happy. But ADAM had already made it's way into Rapture society and Kyoko became obsessed with its applications and addicted to it's use. While leading a division of NERV scientists developing the EVA model Big Daddies her mind began to slip away, eventually ending in an attempted murder-suicide of her and her daughter. Luckily for Asuka, her madness had driven her to instead believe a small doll was her daughter instead. Asuka was then pushed out to the Little Sisters Orphanage, where she was subjected to the Little Sister experiments and eventually pair bonded to the very EVA unit her mother had been working on. Her ADAM production and efficiency in "recycling" ADAM has earned her the classification as a "Second Child", near top tier in efficiency.EVA 02 was originally going to be the model for all future Big Daddy productions, but the Protector Program was found to be a more effective tool than the pair bonding system and the model designs were scrapped to older, cheaper models for the new production line, since all Big Daddies could protect any Little Sister instead of needing a one to one ratio that could only operate in pairs. Still, EVA 02 remains a more adept tool at protecting it's charge, capable of a much more powerful Absolute Terror Field and fighting with the ferocity of a crazed beast.Gaston Means was a con man with a specialty for impersonation before coming to Rapture, but once he was there he took his art to new heights. Using ADAM he was easily able to change his appearance with the help of crooked doctors like Jon Brinklie who were always looking for a well paying customer. He was soon the scourge of the city with no one able to identify the man's ever-shifting appearance. The spree started dwindling when Gaston himself started forgetting who he was, his new personality blending those of his many impersonations. He did still have one thing that was clear to him though - his constant use of ADAM had created a dependency that he had to satisfy, and he'd become anyone or anything to do just that.I had come up with blending the worlds of Neon Genesis Evangelion and Bioshock a while ago (and even posted a few concept doodles), but it wasn't until last weekend when I finally stopped to think what the Angels would be in this new world, and I dove in head first, headcannoning ALL THE THINGS. I'm actually rather in love with all of it now.Anyway, these are all just first rough passes really - the first designs that came to me as I drew, so apologies for them being a bit unrefined.Eva 2 was the second design I did back a year or whatever ago when I first thought up EvaShock. Because if there's Evangelion in Bioshock of freaking COURSE the Evas have to be the Big Daddies (well, possible gender aside anyway?). Eva 2 was actually really hard to design. Spent an entire day just trying to think up just what the hell it'd be, but I do love how it came out. By the By, you can check out it's full design here!: fav.me/d80ql26 And if Eva 2 was a Big Daddy it's only natural that Asuka is its Little Sister. Honestly not too much thought went into that decision, but Asuka's sweet personality that can turn on a dime to horrid rage is really amusing to imagine in a Little Sister.Gaghiel... I don't even, honestly! Thing is a freaking alien shark thing, so adapting it to a human was a braintwister. Better than that though was coming up with a backstory! I was just staring at this mound of flesh yelling I DONT EVEN KNOW WHAT YOU ARE HOW CAN I TELL WHAT YOU WERE!? But I think I resolved it quite nicely!