First ever grow, grow setup-PICS

this is my apartment grow setup.
interior dimensions: 2'6"W X 2'6"L X 6'6"H
(40.625cu.ft.)
Lights: Sun System 2 400w HPS
Exhaust: Hydrofarm Active Air 60 cfm blower
Intake:Lasko High Velocity Utility Fan
Filtration: Can-Filter 2600 (exhaust only)

I plan to grow at least 5 female plants in this. I assume that it's enough space to do so.

i live in an apartment and the setup is in my bedroom, I built the little wall so that when the pest control guy comes to spray he wont see anything. the foam is meant to dampen the sound of the fans.

In the end, I relocated the filter to the outside of 'box' with the blower blowing air through the filter instead of drawing in air. the influent side of the blower is hooked up directly to the light.

tell me what you think and if it really is possible to grow 5-6 females in there?

i definitely like the set=-up you have going there... and im using a very similar in size box less a foot in height and i could fit 4 in there for sure... so i don't think you'll have a problem with 5...

yeah, five should be possible, if i put one plant in each corner of the box and one in the center it should work out. 6 will probably be cramped