Good job.
One of the first thing RUI told me when i started posting and my experience has confirmed, is that harvesting based on tricome coloring is a bit of a fools game, some tivas wont amber up til the plant is near dead, some rosiny hashplant types will amber way early. The effects of havesting to disired effect are overstated, it plays a part but 90+% of your medicated effects are going to be determined by genetics. What i look for now is the swell of the caxyles to see that i have packed on as much bulk as the buds will produce and the maturity of the pisels to determine full ripness.
Is this 3 plants we are looking at?
So the lime green one i would be comfertable chopping now, though another week will probably get you a bit more bulk. Im assuming the white hairs are late growth "foxtails" the ones that are colored have mostly receeded into the flowers. Caxyles are nice, fat and round.
The dark green frosty ones got a lil while to go still, pestils still standing tall, caxyles still look a bit flat but have started their swell, 2-3 more weeks,
same with the purple one, wait for that color expression to fully take though the surgar leaf.
Foxtailing is crazy on the purp, if you can imitate the changing of the seasons (dimmer light, shorter light on hrs, little colder during lights off) you can minimize that on your next run, some strains (particuarly heavy sativa) will do it anyways.