my first time....hows it look?

hello and welcome to my first grow......everything is real basic since it is the first one i ever did....2 stage veg....lower four 5 foot flros upper is a 4oow mh...
flower room is a 400w hps with drip....
help me tweek it to get the most outta what i got thankx

hey bro, I'm not going to rain on your grow, the plants look good and healthy, so you are obviously doing stuff right. That being said, I would only say.. lose the tin foil, invest in some mylar.
A second suggestion, for the set up in pics #2 and #3.. you could consider putting reflective surfaces on the other sides as well.. even if it's like bristol board or something.. may help reflect some of the light and help.

But looks good man!

Looking good bro. Did you get rid of the mold?