Opps, didnt notice you've put up your crit thread, Ill just repost here for the record ;D
Heres a quick crit
-Hips too narrow
-Legs too short
-In general an adult/ teen should be about 7 to 8 head in measurement (height wise).
-Try using skeleton/frame to work with while planning our your poses, that way you know where you are doing and will give you a simple estimate of the proportions before hand
-The way I like to do female bodies is to match their hip and shoulders to be the same in width.