by looking at this and you saying the plant is a 12 week is probably pretty close to the plants life,
i would check the tricomes from here on out though, milky/cloudy trichomes are what i go for, the amber tris are ok but usually amber means the thc is degrading and wont be as strong.
so far your doing an amazing job, this looks pretty tasty for sure, great job and happy harvest in a few weeks