That top pic with the burned leaves looks like toxic salts buildup. Naturally yellowing leaves near the end of flowering go limp and pliable before they dry up and get crispy. Excess N late in flowering is the main cause but it's basically too much of all the nutes that does that.
I've got a Mazar X LowRyder1 auto called Purple Jem. Really nice buzz that perks me up nicely. I've crossed it with some of my regular strains and almost ready to start growing a bunch of them then breed the ones that will actually flower under 20 hours of light to get seeds that are going to be almost all autos. Want lots of seeds for planting in the bush next June. I'm too far north for regulars to finish flowering so need autos and lots of them.