Last couple pics of the closet as it stands now.

I still need to...
...put in the ceiling
...make DIY light mover system to easily rearrange and raise/lower lights (I will make a DIY post of this when I do it....)
...add the necessary ventilation system (until C02 injection system added if i decide to do so for the veg rooms as well)
...caulk all the edges with an opaque black caulk
...add a second layer of 6mil poly for added seal guarantee
...add mylar for maximum reflectivity.