First closet setup.

I have my first hydro setup hidden all stealth like in my closet. I'm growing 1 strawberry kush and 1 cheese. I have my light set up 12 inches away from the tops and they seem to be doing good. It's a 400wt hps. Any other suggestions on light length.

 

i guess no takers. just one input from a seasoned grower will be nice