U can see if a lady is ready to harvest when trichomes become from transparent to milky white. But if u want to be more mature wait until a 15-20% become amber
Looks like rot likely due to excessive RH. It could also just be purpling but that would be a very odd genetic trait given its location. From the picture, though, bud rot seems most likely
@Tweezer, thank you I'm trying to see the tricombes they look milky white to me but since I'm new it's hard to tell the inner of the buds look like mold idk it's been in the ground little over 3 months they advised 55-60 day from seed to harvest guess I'm getting close