yo rasta do you have any more of the reflective material, if so I would put some on the floor an just make it all the same color. Here is a good thread for CFL lighting:
CFL Proximity To Foliage. The info is there ya may have to go through a few pages to get the just of it. The first few posts from the OP explain the basic concept.
Do your plants sit where they are at in pic3 most of the time, if you gather them all in the middle as close as possible then you can get a bit more light concentration. Is there any kind of reflection for the top, like resting something across the power-strip. I am temporarily using a sheet of heavy-weight poster board. I cut it in half an it fits pretty damn good in my ghetto box...
. More lumens will never hurt... well as long as you can keep temps adequate. On my power-strip light I used 1 more pair of bulbs in the middle. I found some 3-way grounded plug adapters at Lowes on clearance($1.97), i just picked up one to see if it would work out.
I plan to get as many as they have left next week. Adding 1 more of the 4-way to the power-strip, so 1 at each end. Also will have 2 pairs of 6500k(maybe) facing down at angle. This is kind of a temp. grow(box) now, roommate today mentioned they would not care if I used the spare bedroom closet...