Not sure how I missed this, but I'd like to add my compliments too. Fabulous work. As for suggestions I only have one. You might want to condense the letter spacing of the river, at the moment it's quite hard to read. Since the limits of the river are clearly marked you don't really need the lettering to suggest the limits by spacing them over such a wide area. Of course you want to retain the fantasy 'umph' as well. If you haven't already take a look at the link in my sig about labels, there's something there about spacing between letters (not to be followed slavishly of course!).

Terrific work, LuKc!