Buds not fattening week 6 flower

You are week six, while a perfectly healthy canopy is possible, some light damage by this time is not too much of a concern either. Your canopy falls under the minium damage. some light tip burn. everything looks fairly healthy and happy, though, so you can assume your plant is repening just fine. don't trust your eyes. Take a picture of a specific bud. then continue to take a picture of that bud ever 5-7 days. you'll quickly see that there is definitely something happening -- try to do the same angle and distance etc.. the calyxes will slowly plump around the pistils. some strains may have longer hairs than others when ripe, but in generaly they should 'look' quite short and then coil up as the pistils die. trichomes, pistil coloration, and density of nugs --- use more than 1 thing to determine harvest as some of this stuff does vary by plant. if 2 of 3 are looking good, you can make a judgment call. looks like a possible p-tox, but as long as it is slowly progressing, not necessarily a bad thing. better to push upper limits than give too little -- in context of slow progression. can easily drop P a few percent if needed without drastically impacting other stuff if you wanted to. would need to see more closeups of leaves and exactly what's going on and how it prgoressed. compare to a leaf chart and adjust if you want.