400 watt stealth beginner grow closet

Just my setup, thought I would show people and hopefully get any advice on anything that could better it. And I'm open to any questions . it's a 400w cool air tube its a tight spot so I put the 6" up top with a hole leading to attic , its my first grow and I'm really just hoping to get something ha-ha. I will keep u posted the 4 plants that are in the milk jugs are 35 days old today .