overcrowded

Wondering if the canopy of this plant will be overcrowded and if I should take some more of the branches off. Thanks

Flipped my girls to flower a little over a week ago and I'm not sure how best to continue training them. I'm basically out of horizontal space at this point. Vertically there is an 18" gap between the plants and light (the manufacturer recommendation for flowering- I don't have a PAR meter) and...