have you been giving them anything thats high in nitrogen? From some of your pics your have some nasty leaf curl thats caused by a nitrogen toxicity, and it hurt your yield and quality.

Find out what you gave them, and maybe think about cutting it out completely during flower.

For 2 grows i kept on using my Cal mag+ during flowering and would always get nasty leaf curl that would kill my beautiful buds. When i cut out the cal mag i finally got the density i was looking for.