The image was stylized, instead of going for realism, making a character appear not human like, but portray human qualities, makes the character more likable as a whole. This is refereed to as the uncanny valley:

the wolfire team, especially AUBREY, IS taking steps to stylize there characters, in this case, A rat. however, a NINJA RABBIT, might require more stylization.
I think it looks okay, and the perfectly human Aubrey does too. No one is threatening me as I type this, and if aubrey was a ninja rabbit, he'd fall into the bottom part of the valley.
