Very pretty map, and congratz on the commission!

It's a shame the client only requested B&W, because I really think this would look so much better in colour! Also, in B&W, the concept of the bloody drips and fingerprint is kind of lost, and makes them look a bit out of place. But in colour, against a weatherworn, brownish parchment texture, it would have looked much, much better and more interesting, and helped to convey the feeling of a hand-drawn map clutched in the hands of an assassin.

I realize B&W is needed for the book printing, but a colour version is always nice too, for displaying on the author's website. Would be a nice little extra I think, for fans of the book to enjoy, and also to snag the interest of potential readers.

I can't really comment on the river problem (it's not something I'm knowledgeable in at all), but I do think it's something the average person probably wouldn't even notice, or take issue with. (It didn't even register with me until I started reading the comments). But, like someone else mentioned, if you're interested in learning more about it for future maps, there's a wealth of helpful info to be found here.

Oh, and I also wanted to say that I really love your sword compass! And the font as well!