Looks good sheist! Right on man.

The only thing I suggest is coating your walls white instead of foil. The foil absorbs more light than white. Not a big deal, but for best results, i'd do that. But if you want to stick with the foil use the dull side, not the shiney side.

Lets see some stuff growing in there man! When do you plant on getting it all set up and going? Peace.