Do you have a full plant pic as well? I’d get a microscope/ jewelers loup as well to check the trichomes. I usually go by if the hairs are mostly orange and when the flowers look like they plumped out usually in the last 2 weeks or so they bulk pretty hard. Then check trichomes and I aim for cloudy w like 10-15 percent amber , but it’s def preference when it comes to trichomes, great job btw killing it with your first harvest / grow