Focus! Can’t really tell, but normally I’d wait until you see the first amber on parts you’re going to keep. I.e. the sugar leaves turn first, but since they’re going in the compost I’d use the calyx trichomes to judge. You have nice frost on your leaves, so you might go ahead and use them as a judge. Sure others may disagree, but as a Sativa smoker I rather harvest early then late (and nap all day).