Is that a really tall fat human?
Not really. If you compare the male Norn model to the male Human model there are many differences. For instance, head and shoulder size are extremely different. Leg length compared to torso length is shorter on norn males. Norn males have wide, flat feel compared to human males. Also, neck thickness is greater on Norn.
Now, besides the general torso shape of female Norn being less “womanly” they look more like scaled up humans. Even though there are some differences. Wider set shoulders, ect.
The skinniest male norn model looks like a human who works out regularly. The thickest model looks like the hulk.