Hi mate,
How far along is she? What power of light are you using? How far away from plant to light?
Few questions about your setup but i think you're doing a great job from what I see. Look like you have a slight PH issue as I can tell by the brown marks on leaves. A grow space needs a minimum of 25W/square foot. I have a 4 SqFt space and run a 110W light. Just enough for that space. It may take a little longer to harvest but happy with my results. If you haven't got that then i suggest adding some supplemental lighting to boost her growth. I hope this helps, good luck and happy growing