pistils are a very weak correlation to thc production. it won't help much at all.
the trichomes, on the other hand change colors specificaly caused by the degerdation of THC (white to amber is degerdation of that molecule.. entropy... inevitable over time)
you cant zoom in enough on those pictures. Gets too blurry.
it does look nice, whether ready or not... but the human eye can't tell you want you want to know, even if someone gives you the answer you want to hear.