An Indica Trilogy

Good news! It's not mold or a major issue with bugs. A few of those photos towards the end look like some bugs have had a couple of lunches, but what I see, and I'm always learning, is Cal/Magnesium deficiency. Check these articles from Nebula and good luck. It doesn't look that bad, my dude. https://www.growweedeasy.com/cannabis-plant-problems/calcium-deficiency https://www.growweedeasy.com/cannabis-plant-problems/magnesium-deficiency For the bugs, get some yellow sticky traps and make some of this bug trap juice. I put a few cups of the juice outside and place the sticky traps near the cups. I collect SO MANY BUGS its rediculous A half-cup of warm water plus two tablespoons of apple cider vinegar, a tablespoon of sugar, and about six drops of liquid dish soap just might be able to cure your gnat woes. They'll be lured in by the sugary mixture, but once they dip in for a drink, the sticky dish soap will trap them.

Unless it's a bright spot or searchlight, I doubt the light is reaching your garden to affect anything. - However, if you're in doubt and truly want to know, go buy light meter. they'll set you back between 50 and 500$, depending on the quality and brand. (Tho, you could probably download an app for your phone that uses the camera, but it's likely not very precise if it even works.)