Help! What am I missing in my first closet grow?

Light In Picture:400W MH bulb

Here is my set up thus far not much to look at but a start. I have a friend who said since the walls inside the closet are white mylar or reflective materials should not be needed is this true? Also is there anything else I should have that might help this closet be more efficient.

Thermometer, pH tester? Do you have anyway to get rid of the smell once they start budding?

that MH is too close. you want it 3 to 4 feet away.

my 400w MH on seedlings is 4 feet away and it is just the right temp(around 80), any closer and it's too hot. i'm just in the middle of sorting some better ventilation out so I can gradually get closer. yours will probably be too hot!

get some ventilation or use CFL's.

i second the lights way to close opinion and later u need a timer if u dont have one

Raised the light about 3 1/2 feet away from the pots. They seem to be doing much better.

i got the same fan as you, did you get it at walmart cause thats where i got mine....

Yea its really cheap and works great.

The white paint is a good choice if it is flat white paint, if it is glossy, better go with Mylar or Poly Plastic.

Ok thanks yea the paint is not glossy plain white walls.