Without a picture of the trichomes on the buds (not the leafes), it is guessing for all of us.
If you want to get the harvest time as perfect as possible, you need a microscope or something that gives you (or us) a close enough look on the trichomes.
But for guessing with the pix, I would say the harvest window is open since a few days, I would harvest somewhere betwenn today and in a week.