How much left?

can not tell, but in my humble opinion, just check everyday, see the changes of Trichome color and decide when to chop them, go to Google and look for ripe trichomes and "perfect date" to chop them down based jn trichome ripeness, you will get different effects based on the amlunt of different stages of Trichome ripeness, it also depends on the strain or even individual plant how long it is going to take. Based on that, any given amount of days or weeks given as a chopping date is bullshit. Just check them daily with a magnifying glass. They should all be milky, some amber coloured, at least thats the stage which brings the effects which most of the growers go for, there are enough sources teaching you about Trichome ripeness and its effects on the endproduct. Good luck my friend!