Week 10 in the books, the leaves are showing the fall fade i.e. the plant has used up all of the available nutes in the soil and is pulling from the leaves. Started using the microscope on the trichs and it looks like on day 69 that there is about a week to go so this maybe a 11 or 12 week flower.
@Thaiclee, cover the top soil to keep it moist and the microbial life active, helps with pest prevention as well. I've used organic rice hulls in the past for the silica but there is trace amounts of arsenic with rice hulls so I switched to hay.