Theres lots of threads on here that explain when to harvest.
The buds are super tiny, brown pistils are not an indication. Need hand held loupe to check the trichomes.
I can tell you have many weeks ahead yet though. Look like its only just started flowering.
Boboav,buddy,bro........DUUUDE,you have a long time before shes ready.......6 more weeks at least...and you should've kept everything related to this grow/plant in one thread.....just trying to help