I'm now curious about the first one, incidentally, I never even knew it existed? What sources present that view of Ryloth, by the way?
Pretty much everything before Filoni. I did a roundup on the Ostrander Twilight (not that one) arc in Kylar's EU thread, which covers some of it pretty well, but TL;DR: Ryloth pre-TCW rotates extremely slowly, meaning that one side of the planet is permanently bathed in sunlight and the other perpetually dark, creating a narrow habitable strip at the borders, with the rest being death zone. The Twi'Leks live in cave-cities within this habitable strip.
They also have a very unfun society. Their clan-leaders are made up of councils from various noble families. Aayla Secura's clan has five heads of families, of which the Secura family is one. When one of the leaders dies, the other members of the council are driven out into the death zone to die and new leaders are chosen.
Women especially have an unpleasant life, being heavily constrained to roles and often treated as property or second class citizens, regularly being sold offworld as slaves - even members of noble families, like Aayla, who only narrowly escaped sale to a Hutt as a young child. This is so much so that Xiaan Amersu, a young Twi'Lek Jedi, significantly looked up to Aayla despite having not met her because of what she represented.
That said, Twi'Lek men didn't usually have much of a fun time either - just less unfun - even if they were ever in a position of power or influence (which most pretty much weren't; really bad prosperity inequality and a lot of predation from offworld slavers) then they lived with the eternal concern of one day ending up on the council... which is basically an eventual death sentence if one of the others dies.
One of the major produces of Ryloth is Ryll, a weak form of Spice that had uses in pharmeceuticals. It can also be fed to Kessel Energy spiders to produce Glitteryll (the spiders usually produce glitterstim). Glitteryll is potent at pacifying people who ingest it and has a severely deleterious effect on memory. Naturally, it's
really fucking illegal.
Basically, oldRyloth is
really unpleasant, but
really interesting.