They look naked. I would let the plant decide what leaves are beneficial and what's not. Defoliation is debated on this forum all the time. Half say it increases yield and half says it hurts it, but most will agree its not a technique for first time growers. They look good though, nice and green, no nute burn or deficiencys that I can see. Your off to a good start, just keep doin what your doin except making a dozen threads about the same thing, ones good. happy growin.