You're right about the photos...

What are ya using for lights? Plant appears to be healthy. (from what I can tell from the photos)

If this is the old Greenhouse Seeds SSH it does look a little thin, but these usually go long.
Under a 1000 HPS grown in soil, I've taken them no earlier than 13 weeks, so you've still got a ways to go. She ought to be filling out soon though, provided you are supplying enough light.
They should be getting a good frost to them around now, can't tell in the pics if this is happening for ya.