Flowers developing. Bended branches became thick in the place of bending. Some leaves became yellow. Good to grow in this time of the year. Sun is still good and no pests.
It's good to get as much light as you can but try to avoid heat stress.
To your other question there are some weeks to go because the pistils are still white. Wait until they turn brown and frizzy. For the best moment you will need a microscope for checking trichomes.