What's missing from Avatar 2&3 that 1 did better?

I know its a thing that the first movie is always the best because it's the first movie.

Lack alien that the first movie brought, like with the new Metkyina villages, we don't actually get to see much of their way of life like we did the Metkyina.

It just felt like a place, as beautiful as it was, also those delete scenes where Ronal was training Neytiri should have stayed in.

Thru way the Metkyina movie to, a bit stiff, because of the body built of course,

And the Sully kids did take after their dad on his human side, but in that fight with those Metkyina boys, I wished they had moved a bit more like tjeil mother did in a fight.

We don't get to see the beach to much either, or just interaction with the Metkyina, like community cook fire, or what their hunting style is even food wise we barely see.