Enough Light?

I have a 12'x12' flower room. As you walk in the door (in the middle of room) looking to your left i have 8-10 new plants running long in 12" wide tray. As you look clockwise i have a 4'x8' tray with 8-10 plants a little older and to the right is another 4'x8' tray with 8-10 plants finishing flower cycle.

I have 2 -1000w over 1st stage, 2 -1000w over 2nd stage and 3 -1000w over last stage.

I am shooting for 4lb per month.
Any thoughts. Thanks.