My wife helped me translate the updated sketch and all the info about Jinbe, and for good measure we went back to Databook Green to translate those relevant pages. I might add the text to the Jinbe pictures sometime, but here you go:
From “Saigou” to “Jinbe": The History of the First Son of the Sea’s Conception
Saigou: that was the name of Jinbe as originally conceived. As you can imagine from the name, the image was a big body touching the sky with a monk’s shaved head. Based on this, after so many character concept drawings, and with the idea of a whale shark fish-man in mind, the final design solidified.
(NOTE: They are referring to Saigō Takamori:
https://en.wikipedia.org/wiki/Saigō_Takamori)
“So, you’re the guy who took down Arlong?”
“You’re pretty puny.”
Southern Country
Jinbe
Looking for justice
Mighty power
Close with Zoro
To the promised land
After the initial concept, the First Son of the Sea finally joined the crew!!
Look forward to more action from him going forward!!
Saigou
“It’s you, Luffy.”
*grin*
“Thank you. I heard you stopped Arlong.”
The Secret Story Behind the Creation of the Straw Hats
Concept notes by Oda open with 20 concepts about the Straw Hat crew and story creation secrets.
Drawn two years before serialization began.
Instead of Robin, there was a guy who likes plants.
This is a later concept from right before serialization began.
It’s very close to the crew as it is now.
First Son of the Sea Jinbe Changed Six Times!!
In the early story, the name of First Son of the Sea Jinbe was brought up. But until he showed up in Impel Down, the design changed a lot. In the first draft, he looked like an obvious bad guy sea monk (NOTE: Umibozu, like they called Wadatsumi). After that, he got the top knot and slowly changed to how he looks now. Likewise, his personality also changed. In the early stages, he was a dynamic boss character.
(NOTE: I double-checked about the villain part, and it explicitly said he LOOKED like a villain, not that he WAS one.)