Hello HerrTom,
Usually I tell people to wait till 10% is amber. This is a great way to tell a beginner the aproximate time to harvest. But what you really want is as many trichomes milky white. The best would be 100% milky white because clear as glass means not developped yet and amber means that you are too late.
So what I try to tell you is, check if most trichomes are milky white. Not clear as glass and not amber. Then it is the right time for harvest.
When I look at your plant I would say that it is about time.
Happy Harvest Buddy! 💚