Are they ready for harvest?

Hey! I would wait a bit more, roughly two weeks or more looking at the pictures. You still have a lot of white straight pointy hairs (pistils), that means your buds are still growing. Wait and you'll have more dense buds, richer smell and taste along with greater yield quantity and quality. Harvest window opens when you start getting amber pistils. Normally when there's 70% amber and 30% white pistils they're ready but that's not always the case. The best way to check is looking at the trichomes. Clear trichomes haven't reached their full potencial yet, cloudy ones are full of THC and amber are losing THC while gaining CBN. So depending on your preference whether you want more of a head high or body high. when I see there's 30% amber pistils I start flushing which is about two weeks left till harvest. I normally use a 60x magnifying to look at trichomes when there are about 50/50% white and amber pistils. I harvest when after examining and finding 70% cloudy trichomes and 30% amber trichomes. For me that's a prefect combination, depending on the strain as well. Have in mind if you use nutrients you'll need to flush the roots, watering with PHed water only for at least a week. As for the difference between CLOUDY or CLEAR.. Clear trichomes look like shiny glass while cloudy ones look like more like plastic. Good luck and Happy Growing!😃🌱🌿🌲