Hi, I am a bit skeptical about my GRE scores (first one, will be taking a second one very soon), for the schools I am applying....any suggestions?

GRE: V152, Q166, AW2.5 (this is where I have no idea why I received such a low mark)
GPA: 3.3
Experience: 2 years of work/intern experiences in Japan (National Institute for Materials Science), US (Harvard Medical School) and Canada (Agriculture and Agri-Food Canada/small start up biochemical company)

Schools Applying for MS:
U of Texas Austin
Duke U
U of Penn
Columbia U
U of Michigan
U of Rochester
Northwest U
U of North Carolina
Brown U

Georgia Tech (which I really don't think I have a chance)

Can anyone comment on my chances of being accepted to those schools?