The feet, as with the other rats, are a bit weird. It looks far too masculine to give it the boobs in my opinion. I'd drop the boobs and remove the long hair, unless you can find a way to make it less masculine.
The teeth are massive and rabbit like instead of ratlike, the whiskers are too thick (I probably wouldnt do any more than put dots on the face texture), and the shoulderpad has a texture error with fur.