Plant is about 3 months old, about half of that spent flowering. The pictures are from the top-down, so first picture is very top cluster, last picture is very bottom cluster.
It's too soon.... Only some of the trichs have started to turn and I see new hairs growing out. I think FTP is right, you have a little more time. You should have stopped feeding nutes and getting ready to flush. Keep an eye on the trichs, they'll tell ya. Those buds still have some swelling to do.
Flush = just water? I have a water filter I've been using to filter their water. I am still feeding nutes though, I thought you fed nutes 'til harvest. They have probably been watered with nutes for the past 3 weeks, 2 or 3 times a week.
dude u HAVE to flush for 2 weeks with just water NO NUTRIENTS,.,. your leaves will turn yellow dont be alarmed its a good sign the yellower the leaves the better then chop that beast down,.,., and put up some pics