comment=17515 What's with that one tree that's looks to be twice as saturated as the others? O.o
I think it's just a lighter color tree, could be from a character set though, since normally you don't want to have trees of different color or shades on the same chipset. They're too big and thus take up a bit of space on the chipset.
BTW, LOVE THIS PIC! I never thought of a waterfall that way with the river diagonal, that's just an awesome idea for mapping.