Nice plants....Next season I'll have a greenhouse too, anyway I saw your pics....I'm not there to see them in real, but you got to many leaves there, start clipping those leaves away... and yes those dead leaves around your buds, could and proably is the start of mold spots. That's why it's important to keep trimming your plant, you want your buds to bud to the max.....and air circulation helps prevent mold. And get some CANNA: Terra Flores. while in flowering ..just add it into the water, in which you water your plants. But get rid of those leaves....I really can't see but,I think another 3-4 weeks.....really can't tell from a pic..got be there to see,feel,and smell.... Hope things work out..........