It looks like you are maybe half way or so through flowering. It looks like you have multiple weeks to go. I suggest going to your local radio shack and purchasing a 10$ hand held microscope. Use it to check the trichromes and how far along they are. Amber/Partly Amber/Cloudy/ your preference. The hairs should also change to an orange color, it looks like your are still white. Good luck, and dont chop too early. Hope I helped.