A hint of hulk is apparently not unwelcome in the modern woman's image, and a slightly humped back, spinal curve, and forward-thrusting neck go well with that.
In the modern woman's image, a more solid look is not accepted. 
mnli hypothesis: In the modern woman's image, a more solid look is not accepted.  premise: A hint of hulk is apparently not unwelcome in the modern woman's image, and a slightly humped back, spinal curve, and forward-thrusting neck go well with that.