I do weightlifting and running so I'm on the opposite end of the spectrum as far as muscle mass and the same height.  At 120 I have a flat stomach and a small amount of vascularity on my lower abdomen/hips but am by no means unhealthy/anorexic looking. Below 115 I begin to look a too thin for my taste (lots of abdomen vascularity 24/7) but still not anorexic looking. 115-117 is my sweet spot looks-wise.