well ill give some insight... i grew out a God Bud seed for my first grow under 2 145watt LED UFOs, 3watt LED chips, i wanna say 40-45 chips per UFO. anywho the penetration from that distance sucks... although your doing a scrog so that may make up for what i experienced. i let my GB get tall with no training of any kind, it was after all my first grow lol, anywho i did notice a difference in growth speed when it was a bit closer to the top of the plant, and once it was at like 5 weeks into flower i pitched my lights at like a 45* angle so get better coverage on some buds under the top kola, i ended up walking away with about 2oz dry product when all was said and done, not as good as my current HPS set up but hey for LED lights thats not too bad, but yes i would reccomend if its possible to get a 2nd light just like you have and lowering them to about 4-5 inches above the canapoy, and dont worry about the plants stretching and touching the lamp... the LEDs only put off like 2-5 degrees F. difference from 2 inches away from the lamp.. gotta love it... so just smash that sucker down closer, not all the way down but find that sweet spot where you can see super bright pink reflection from ALL of the canopy, the last pics you posted look like the lights a tad weak around the edges of your space, drop it a few inches till all is super bright. just my experience with LEDs, about 2-5 inches above canopy was my sweet spot till week 5 of flower, but all through veg and first 4 weeks of flower, then i pitched them as i said... thats my 2 cents on that matter hope it helps bump yer yield up a fuzz