Nice picture.
However, for a professional photgrapher and a person who says he
teaches photography:
a. bad framing, no esthetic reason to crop her right arm and leave
a dead space on her left side (right side for viewers)
b. white balance is off (as suggested by Victor and Dan), the
shooter who comments on Pringles and ExpoDisks should have done
better, or at least fix it in postprocessing..
c. For a studio shot where meticulous attention to detail is
warranted, the shooter should have noticed that the bra straps and
the left side of the bra under current lighting conditions are less
than adequate. Get her to wear a strapless bra or not a bra at all.
Don't worry if you are a conservative North American, the nipples
won't show !
d. Double flash reflections in her eyes are VERY distracting and a
no no for studio photography. There is no technical reason
whatsoever to have 2 front sources in such a simple shot,
e. Don't make your subjects stand with an angle to the background
as you did here. The background on her right side is different than
the background on her left side, both in terms of focus and
illumination. This is not pleasing for a studio shot.
To comment on Mr Clark Hampton's question, "quick portrait"
probably refers to a "quicke" where the shooter does not want to be
criticized for details. "Quick because I did not really have time
to post it ...

" is meaningless, don't post it then, there are
dozens of people who see you as a Photo God here, feel some
responsibility.
Mitch