The feedback here is good. There's a presentation issue, and if the map is unnatural at first glance, then I think it would be better to rework those rivers (particularly the South).

The rivers were drawn at a point where I thought I'd be able to show other parts of the engineering on the map. Most significantly, there's a dam that is not visible on the world map that stretches across the outer islands of the "Shallowed Expanse" (in other words, that's a large freshwater lake). I just couldn't get something I was happy w/ there, so I scrapped it and decided to show it on more detailed, zoomed-in maps.

That said, I think it'd be safe to do the canals in that zoomed-in format as well and make sure things look a bit more natural.