I feel like the thickness of the rivers is far too wide. Most maps now are majority water even if I turn down the frequency of water spawns. There is also some other minor issues, the fords do not have a nice boarder with land, and with any mod that allows swimming on shallow water ruins the entire point of the rivers in the first place. I suggest swapping fords for shallow water and the rivers with deep water to fix these issues. I would also like to see some kind of reduction in rivers taking over the whole world.

Interestingly it also seems to produce the same rivers despite seed changes.

Make river bigger suggestion https://mods.factorio.com/mod/NewIslands/discussion/5b0938ba4d2f59000ab45fae

I want to add some random to the mod, but you can die on the first tick of the game. So the whole code must be reworked.