So I can't really tell what the trichomes look like from the pictures. That said, based on the few white pistils I see, you still have another 1-3 weeks (1 until I believe the harvest window opens, 3 for more amber colored trichomes), but it is really personal preference depending on the high you're looking for. I'm still fairly new to growing, even though I have a few grows under my belt, so I may be wrong. Maybe one of the veteran growers can help a little more. Also, may I suggest more pictures, maybe some of the whole plant. That can also get you better help I think. Hope that helps a little. Welcome to the forum and happy growing!