I have seen this before, it's pretty cool and fun to revisit. I have to say that in the jeans and tank, it looks pretty accurate for me - 153 lbs/5'6"
But it is waaay off for the bikini! If I looked that good in a bikini at 153 lbs I would be posting goal pictures here at 3fc. My body is FAR more fat than that avatar.
She has much more muscle tone and definition, less huge belly roll, doughy arms, saddle bags and bulging thighs! (Maybe this is why I need IP... )