Buds look really nice. They did a good job draining the nutrients from the leaves. You problably had a few different deficiencies.At this point your so close to harvest your in good shape. You should start flushing the leaves will look worse for wear by your harvest day but that's normal. I would wait until you see the trichomes turn1/2cloudy but mostly milky with 5-15% amber depending on what type of high you like. Good luck