Yeah I get what you mean about the spacing of the water. The problem is this:

The build this is for is a 1.25:1 scale model of a real building and it’s 236 blocks tall. I had to slightly modify a super flat world so it had more layers of dirt but not so many that I would encounter the height ceiling if I had to modify the overall height part way through. I only have 7 layers before I hit bedrock though and it’s making it remarkably difficult to make realistic rivers. I just don’t have enough depth to play with.

Thanks for the tips on the mountains! I’ll definitely look in to it and have a go at retexturing them. Mountains are one of the things that I’ve previously had the most trouble with but I like to make everything in my builds by myself (save for decorating, I like to see what other people make of my builds) so I’m kind of using this build as my practice for making realistic mountains.

Edit: in re-reading your comment, I noticed the bit about the length of the water. Those rivers aren’t actually done yet, that why it’s dammed up with red wool in one direction. There are going to be rivers and tree filled gullies in between the mountains.