I'm roots !

roots develops to search for water and they need oxygen to live. As you put the soil (so the roots) on a pot without holes or air exchange around the roots are going to get tangled over the soil, exactly like on the first 3 pictures. Holes over the pot or "breathable" pots is the best way to improve roots development. Surely perlite helps, but they help as making macro pores to the roots, but even with macro pore you need to improve the oxygenation over the whole soil.

Yeah looks good for an auto flower root zone. Congrats on the harvest! Photos tend to have a richer root zone, but mainly due to the longer grow time. Nice job on the auto! ✌️💚🌿💨

If you can. Set your temp below 21pal. In reality you would want 17c but 21c is the top you should dry at. Your RH is fine.

I'm far from a pro. But, yup. That's pretty darn good buddy. I think ppl get hung up. About roots growing on the outside and having that covered. When in reality you want what you had mainly. An amazing root structure inside the soil.. as that's where the goodness is. So generally when I see a plant picked up, and its just pure roots on the outside. "I wanna see what's happening inside, you had a really good root ball and as you see roots reaching the pot and trying to find more space to grow as the middle was full. Really nice. And think. That's an 8 week grow. So in reality. It takes up to 2 months to get a great soil breeding ground going and for roots to build up massively. So for an auto.. and In a big pot that's good. Nice big strong green roots that planted her nicely in.. Wait until you get a fem going buddy. Your whole pot will be a root ball. Well done