How long before harvest?

It can take up to 2 weeks,

Great pictures! I think you are well on your way. Preferably I like to go till I see around 10-20% amber color. It looks like you are on week 4 of flower now so I think you still have a few weeks left. Just keep an eye on the Trichomes. I’ve always thought the times breeders say is always too soon. I bet you will go 6-7 weeks in flower with your Auto. My last Fast Buds auto went longer than what they listed on their website. Hope this helps.