Pretty pretty! Love the hell out of indica. Love your nutes & grow mix too. You've made some good choices. The only thing, keep in mind that the R.O. membrane 'polishes' the water by removing anything larger than a water molecule, so that means no minerals ( water is normally one of the best sources for us & plants.). You will need to up your feeding as they grow. If you need a little more space between the nodes, just raise the lights a little. The internodes lengthen as they stretch for the light. I like mine close & tight in veg, because they will naturally stretch while budding. They look great! First grow, huh? Well keep up the good work!
~~~~~PEACE!~~~~~

You need a flowering food too, lower nitrogen, highest in phosphorus & a little more potassium than you grow nute.