TRICOMAS !

Your photos are of trichs that are on leaves which aren't reliable... Yes, there are some amber, but I ignore those if they're on the leaves.. you need to take a look at the trichs that are on the buds themselves.... Have the pistils started to turn brown? Has the plant itself started to fade/leaves turning yellow? These are the clues that will tell you to start looking at the trichs... pistils should be about 90% brown, fade should be taking over the whole plant... Good luck...

Seeing thricomes (milky with few Amber) she looks ready! It's auto or photo? :)

They're only in the 4th week of flowering. Typically, you should harvest between weeks 7-9 depending on the strain. Definitely leave them for a bit longer if possible, the plant will really start to produce more trichomes now. If you harvest now, you'll miss out on potency and yield.