This picture shows the tops well developed but the side branching and anything under that canopy of leaves is just larf popcorn it would be greatly improved if you defoliate and opened up the light to the canopy throughout nice pic tho bro
I’m glad you’ve had a good result not removing leaves but in this case there are a lot of leaves blocking light and a good defoliation will do them the wourld of good in my opinion
Any big fan leaves that are blocking lower bud sites remove you can take about 25% of the leaves off each plant and you’ll be ok it’s not overcrowded in there just a lot of leaf they come back quick !