First, gradient nipples. It may not be evident from the looks of it, but the artist intended her nipples to be seen. They are gradients. That's kind of lazy. Her lips, as well, are just a round gradient shape.
For lack of a better term, her "ass cheeks" also start way down her leg. They are actually off the picture.
Her hands are way too small, that is to say, in proportion from the rest of her body. Also, the hands are drawn oddly. Both pinkies look like they were amputated at birth. You could make the case that because of this, the breasts are abnormally big and out of scale as well.
The artist let a rough outline of her figure in the picture as well, as kind of a sly move to get us to not assume she's fat under the robe. You can see this clearly by looking at her right hip area and following it up. In reality, those lines shouldn't even be there. He's just a bad artist trying to fix his mistake.
I have no clue about her arms, but the clothing is drawn as wrinkled so poorly, and her hands are so small, that I actually see the shape of her arms to fit with this skeletal structure: http://i43.tinypic.com/2vdrajk.png
Danbooru is mainly for pics about anime. If I wanted to see T-Rex arms, I would start a paleontological booru.
Also, her pubic hair is drawn with no pattern at all. It's just scribbled there, and also growing in the wrong direction, hanging down between her legs. Gross. I'm assuming this artist couldn't draw an actual opening for the vagina.
