Nice plant! A healthy female will be in full flower anywhere between 6 and 10 weeks after inducing a 12 hour photoperiod so she still has a lot of filling out to do! Be patient!
After 6-10 weeks, begin to analyze the trichromes regularly with a microscope and when you begin to notice a slight discoloration she is about ready to be harvested.
At first the trichromes will begin to fade to a white "milky" color. At this point you are almost ready. But don't harvest until you begin to see about 50% of the trichromes turning an amber-like color.