Hi
@Yoshh! This strain usually takes 6 to 8 weeks to flower properly. Considering you're in the 3rd week of flowering, you should wait at least 3 more weeks, but judging by your latest pictures I'd say 4 weeks. You'll be able to refine this calendar by looking at the trichomes with a magnifier/microscope. Hope this helps, keep us up-to-date and happy growing!