These are by Andrew Kanounov. And while it would obviously require a ton of time, measurements, and money to get one, don't you just wish you could?
Of course you do, everyone does. Or maybe you don't (which I can't believe) but you are sick of a lot of the depictions of women in video games. My friend needs your help.
I'm glad to see this discussed on Jezebel rather than where I usually see this: in the comment section in Kotaku whenever there is concept art with female characters. This particularly grinds my gears as its often flatly settled with the agreement that breasts are not the best design to deflect blows.