At the moment I'm seeing 89% cloudy, 10% red and 1% clear trichomes. It is not very clear from the photos but from what I'm seeing through the magnifying lens this is how it seems. There is significant yellowing but also many white pistils.
if you are seeing that you probably have around a week left right now you can harvest but waiting until you see more amber or red is what you want to get the max thc. you can harvest any time you like now as it is all personal choice, right now you get more a heady high while waiting that head high will be stronger and possible couch lock. hope this helps
It looks like they could go longer based on the size and green leaves.
Remember to check the trichomes on the buds themselves and not the sugar leaves! Sugar leaves trichomes will change weeks before the actual flowers will!