Sableyezer, why not just describe him as such? Still, try looking for pictures of Edward William Barton-Wright, you might find what you need.

Also, making it so devil fruits make you vulnerable to ALL water contact ever feels wierd. It'd make cleanliness awful and hydration even worse, and hydration's a big deal when water is precious since there's so little of it. Why not trade it for something more fitting of the new setting? Say, a good deal of the land is made up of...I dunno, lets call them Heavensand deserts to play off Devil Fruits. The white sand from these deserts drains all strength from those who've eaten devil fruits when they step foot on it, are engulfed by a sandstorm or are otherwise in contact with large amounts of it, meaning those who've consumed devil fruits must be extremely careful when traversing those deserts and must prevent large amounts of the sand from accumulating on their bodies. Instead of Seastone, you just have the world government refine Heavensand into a special white iron for weapons, cuffs, horseshoes, prison bars and the like. If you want to keep the material rare like seastone you can just make the process extremely time-consuming, difficult, expensive and potentially even unreliable.

Speaking of devil fruits, logia ones. Since they're so powerful and haki, which in the original is by far the biggest counter sans rare seastone weapons, is apparently rare, are players allowed to have logia powers? ONE MORE THING! We could probably rewrite Haki into some kind of native american/folklore thing to make it better fit with the setting.