If this is your first attempt you should be proud, they look 👍.
There is always a 1000 new things to try to squeeze every last ounce you can. This becomes especially important with auto flowers.
Keep doing what your doing, don't defoliate, just watch the plant defoliate itself, all defoliation is, is chipping off what you know will never fully develop. Saving the workload for better cola closer to lights. Until you know what to expect I found all my early defoliation do was cripple growth.
If a leaf uses more more energy to exist than the energy it produces, it will self terminate. Before doing so it will reallocate nutrient within the leaf that is mobile.
The chloryphyll within the leaf captures light or photons of light.
The higher the temperature within the leaf the more excited the chloryphll becomes (friction) this increases the rate of capture.
Light Intesnsity itself is limited by the temperature within the leaf. Efficiency of capture is effected.
The optimal temp for photosynthesis to occur within a leaf is 86 with co2.
You want to keep hightemp to push ppfd until trichome production.
As the weeks progress through flower you want to slowly drop temps and humidity. Try to keep a 10 degree swing between day/night.
Maintain 45% rh for 2nd half of flower if possible.
Terpenes start to degrade above 67.
The art of flower is not to pump max ppfd for entirety of flower, but to slow things down for the preservation of trichomes/flavinoids.
Keeping 86 for full term will unnecessarily decay trichs.
Terpene peak is roughly 2weeks prior to thc peak. Terpenes are what are responsible for the entourage effect. Which as time goes by I find far more important than how high my thc% was.
We don't grow anything, nature does the hard work. All we do is provide optimal conditions for that growth to occur. Keep expanding that knowledge. 9 cardinal rules for growth, if any one is hindered to 10% the entire grow is capped at 10%.
Your doing great keep it up. Each grow try a little something new, most of all don't be afraid to fail.