Your plant looks a little....shy of the mark. There are several things that I noticed--first one being that your pot looks small for that size plant so I wonder if it is rootbound. It definitely pays to go the extra mile in the beginning; use good soil, make sure of your nutes (the ones you are using also seem a little..well...shy of the mark) because you just put several months of time into that thing and would still put the same amount of time in with different soil, nutes etc and get a better yield. The focus is a little off in your photos but just guessing I would say probably a couple of grams when you are done. I have no comments about your lighting because I don't know one single thing about it..I use a 1kwatt thing that was recommended to me and all I know about it is you turn it on, turn it off etc... (works great!) Good luck.