Nice grow space WSW,
Thought I'd comment and say that you should check out my journal because I think you could benefit from the first half of it! I say first half because I caught a deal on Craigslist and upgraded to x2 150w HPS systems + CFL, from just CFLs.(got the pair for $125)
I've got some lights which are similiar to your in a way. I got them from Target with sorta the same vision you have in mind(I'd say).
But with CFLs, you don't want any height unless you can supplement that plant with adequate lighting down the sides.
You should aim for just as much light around the sides as you have from the top, so maybe drop some of the CFLs and that'd helpout a lot with the branching, and thickening them up. I kept all my CFLs within an inch and a half I'd say AT ALL TIMES.
Idk about you but i prefer bush with these women lol
Also bro, LST! bend your tops over if you can. Look up the word auxin in regards to the weed plant. But basically if you make the top of the plant no longer the top, it'll thicken out. If your stems arent too stiff you should start NOW! You still have time. Also, rotate them often. I also used a mixture of CFLS(65k,5k,35k,and 27k). I did a lot of reseach in regards to growing with CFLs and most of it you can get from the first half of my journal bro
I think you're a couple weeks behind me tho. I potted up 44 days ago.
Also some of the pics show either underwatering or overwatering whichever you think.
Good luck partner.