Yeah I've been inland, I'm in Canberra so we have plenty of bush out here. I suppose I could explain away the mountain with magick or a real big river.
The practice map is a bit misleading, the green is actually supposed to be on the other side of the mountains. These lands are on the eastern coast of a continent (which explains why the shadows fall to the northwest, i didn't want them obscuring the detail), so they get plenty of rain to keep them green.
For the scale, if I made the mountains large would that make them better for the scale. I can't really make the rivers smaller as they are already at 2-3 pixels.