When checking trichromes, you wanna check the bud sites. The leaves will always amber first, but what you care about is the bud. Most of the pics are of the leaves. Also typically the pistols will be mostly (roughly 85-98%) amber and curled in.
You also wanna check the middle buds not just the top. You can either progressive harvest when top is ready and wait on rest, or you can wait for an average of the plant to be in the range and harvest whole plant at . Up to you on that.
You've still got some time to go. Nice job up to this point, looks really good.
Best of luck, Happy Growing!