First pic sucks, but the second and third I do like. I like how they have a certain fifties feel about them without pushing it. Don't like the legs, though. Little thought was put into that AFAICS.
Anyway, this doesn't mean anything, really. Some of FO3's artwork was quite enjoyable as well, and actually seemed to head in the right direction, but then you see ingame stuff and the magic just doesn't work anymore. I'm pretty sure the Fallout franchise (and 99% of games in general) suffer severely from the reality virus.
A lot of stuff in the Fallout universe used to work because it was never meant to be visualized as something from RL, just something that existed within the game. Take Power Armour for instance. In the original games that armour works because we don't get to see all the nuts and bolts. It's more like a prototypical image in my mind, that PA. It looks like a man tank, it allows me to run but don't ask me how, it just does. And it can stand the impact of a rocket. Yeah. Try to translate that with an engine that tries to mimick reality, real persons, real animals, real bolts and nuts and... you are destined to fail.
My two bottlecaps.