lohgockanswered grow question 8 months ago Harvesting when about 70 percent of trichomes are brown gives the most thc content but you get a more stoned sleepy high. When harvesting with more milk trichomes, you get a more active and creative high. I do not see any brown trichomes in your picture, so i would wait a little bit. You have to choose which type of high you want.
But i am still new too, so don't rely just on my knowledge ;)