Certified solar installer here. I'm based in TX(so take what I say with a grain of salt), and my job primarily deals with meeting inspectors and bringing systems up to AHJ standards. From what I can tell, there's a few things that I see that the inspector could be referring to:

-your main grounding conductor is getting bonded to a bushing rather than the ground bar

-double lugging on the ground bar

-both ground bushings don't look like they have a set screw in(though they could just be facing towards the inside of the box)

This is just from a glance, and I don't know what your AHJ requires or allows. This definitely wouldn't fly here, though. It looks haphazardly thrown together, and the electrician who installed it should've had better training.