everything looks good to me, only advice i would give is dont let em get to big before you start flowering, topping will make em bushy so they are gonna take up more space, and they can double in height after you start flowering. speaking from experience lol 16 plants in a 4x4 e&f waited till 12 inches to start flowering and they got massive before stretch stopped and spent the rest of the time fighting the lateral space as much as the overhead issues