I always find the world building in FFV very fascinating, especially in regards to the stark differences in Bartz's world and Galuf's world.
In Galuf's world, the place seems so much more advanced compared to Bartz's world, it's more fantasy-like. There's anthropomorphic animals like Sage Ghido and Kelger and the werewolves roaming around the world and moogles which were not present in Bartz's world.
Not to mention the Forest of Moore where the crystals reside is in Galuf's world, along with the 12 legendary weapons in the Sealed Castle.
I've also noticed how Galuf's world seemed to be more technologically advanced too. Submarines and walkie-talkies exists and the towers being used as a barrier in Exdeath's Castle is electric powered. Also the ability to easily go to another planet through a meteorite. And all of it seemed to be done without needing the crystals' power (although you probably wouldn't be able to access it due to them being in a sentient forest but regardless).
In Bartz's world, the place is much less advanced. The people there live a simple life. The majority of the villages and the kingdoms are heavily depended to the crystals to an extreme that caused the inciting conflict of FFV (using amplifiers to amplify the crystals power).
While the ancient civilization of Ronka made their place float, even that happend to be due to the Earth Crystal.
Other than the drakes and chocobos, there's barely any talking or fantastical animals in that world, when the werewolf came into Bartz's world everyone freaked out immediately and quickly assumed he was a bad guy (arriving through a meteorite doesn't exactly help his case).
This is very interesting to me that despite being originally the same world, the culture there became so much different over the thousand years after Enuo's defeat. Each world have different circumstances that influences how their people live in it. The lack of access to the crystals and the more recent danger of Exdeath made the people in Galuf's world be forced into thinking outside the box, which causes more advancement in technology, while the easier access on the crystals and little conflict made it so that the people in Bartz's world to feel so comfortable living that the majority of the people there don't feel motivated enough to be innovative. When you already have everything you needed, why bother doing more?
Another thing I like to point out is the names in each world. Have you noticed that the names of the characters in Galuf's world are Germanic/Germanic sounding? Galuf Halm Baldesion, Krile Halm Baldesion, Dorgann Klauser, Kelger Vlondett and Xezat Matias Surgate.
The majority of the names came from Germanic origins, except of Xezat (I have no idea where his name came from). And you know who else has a Germanic name? It's Bartz Klauser, who, came from a resident in Galuf's world.
For the people in Bartz's world, the characters named are more English sounding, Lenna Charlotte Tycoon and Alexander Highwind Tycoon. The exception to this Sarisa Scherwil Tycoon, which... sounds a little more German, but both the names of Lenna and Sarisa do share an origin in the Hebrew language so at least there is something in common.
Bartz's name being more in line with the people of Galuf's world helps to hint to the player of his origins as Dorgann's son. This also adds a bit more to Dorgann's character as him purposely choosing a Germanic name likely came from a want to connect his world to his child, even when Bartz has little to no idea about it. At least this is what I like to think.
That is all for my rambling lol. I really wanted to make this post for a while now and finally did it! Let me know if there's anything wrong or if you have something to add onto this.
