Looks great!
Tough to tell the maturity of the trichomes from your pics but like CFL said, thats what will tell you. They age from clear to cloudy to amber. Ideally you wanna chop when the crystals are predominantly cloudy with still some clear and some beginning to turn amber. The reason behind this is thc has the best balance of psychoactive (head high) and body high. Ive heard of some people chopping sativas early to push for a stronger head high but ive read that if harvested to early of to late the thc can degrade or something of the like