Your original assertion was that it wasn't "artistically expressive" which, frankly, was a load of shit. Now you're saying the design is bad because it's stupid and doesn't fit the rest of the game, which is a completely different criticism and also totally fine. As I've said, I don't like her giant breasts either.
That art is actual art and also happens to have real women. Not weird jiggly jello monsters. It also has a fat stalin looking guy and a really old nekked lady and some sort of corpse. And is generally bad ass.
So your argument is that it's fine because it's "actual art" (as opposed to fake art, I suppose, whatever the hell that's supposed to be), because the bodies are more realistic, because it also features unattractive characters (which the game certainly does, by the way) and because it's "generally bad ass". Ok.
The argument that either all tits are sexist or pandering or no tits are sexist or pandering is entirely bullshit.