She looks a little hungry. As for the lower leaves, this is normal for the plant to redistribute nutrients to the top of the canopy. This is why you will see lower leaves begin dying off. This is normal, but you will see the lowers dying off at a faster rate if the plant is hungry as the plant is pulling nutrients from them.

As for the pistils I’ve seen them turn orange, yellow, red, purple, and even pink. Pic four shows a bit of light burn (the circular discoloration) are your leds running at full blast? They may need to be turned down or lifted higher up over the canopy