according to the breeder your plant is ready at day 49 in flower, what i am seeing in the trichomes are they are milky, so if you want amber, maybe a week or 2, from this point keep taking those pics , those little balloons are full of milky thc, yes you can harvest any time now, it is now personal choice on when to harvest, if you want more a head type high now would be the time, if you want the maximum thc the plant has to offer than you want about 50% amber heads, so maybe a week or two and they will be there, it is now up to you when you want to chop, as she is ready when your ready. happy soon to be harvest she looks great