notice how the lower leaves and branches aren't drooping as much while ur plant is in the wardrobe? i would recommend something more like that wardrobe to keep ur plant in... those first pictures there is not a very good "environment" so to speak, a LOT of those lumens that ur lights are putting out are being wasted i would line that area with mylar or on a budget u can get an emergency blanket from Walmart (in the outdoors camping/hunting area) for like $2.00 get some more reflection of light on the plant. and i dont know how big that pot is but it looks kinda small for such a large plant, maybe repotting would help, it might be rootbound.