my grow tent

this is my growing room its 4x4x5 with a 400w switchable ballast and 150w mh. I used black and white poly for side walls and insulated with pink panther
home insulation to keep warm, since its outside. have no temp control so its open for the entire light period. anyways here are some pics of it and my plants. if anyone can help on updating it for a better grow please, thanks.

Thats some healthy looking oregano

Not sure what sort of advice your looking for, but I'd certainly recommend getting some redder light in there for flowering.