Ready to Harvest?

Growing Critical Mass Autoflower. Im unsure if these are ready to harvest. Do you all think i should start harvesting based on the photos attached?

Not even close

One of them has white pistols still but the others seem to be detracting and amber. Hoping to harvest sooner rather than later because we have a heat wave coming with temps 90+. I guess investing in a magnifier might be worth it to check the trichomes

The one with orange hairs is looking a lot closer than the one with white hairs. Id be checking trichs on the orange hair girl. The white one has a long way to go.