How'd you do the forests - some kind of Effects > Noise > Grain over your selection? I'm guessing the water was made by duplicating and then blurring the dark segments, yes? I like what you did there, and I'm curious about the forests.

I'm also curious what your starting grid looked like to end up with this result. There's nothing quite as much fun as watching this beautiful shape appear from a bunch of blobby rectangles, you know what I mean?