Wow, many tile errors.
-The bridge blends into the sand at the top, but not the bottom
-Random ledge extending into the shore tile
-Water shore ledges beneath the mountain? (North of the bridge)
-The roof on the house in the top left has a tile error on the far right tile
-The mountain by the lab-looking thing by the cave in the south has a tile error where the background is black, and not green.
-All of the trees have shadows, when the should not, as they are not next to other trees (like in border blocks)
-By the stairs on the far right you have mountain ledges with the mountain tile background, when it should be grass. (by the small rock)
-You are missing one of the corner water ledges on the far right
-The small mountain to the right of the bridge looks weird without Gen 4 and 5's camera angling.
-There is a small rock in the water that may be a slip of the mouse? It just doesn't belong.
-Your stairs by the sand tiles are missing the stairs tile with the shading. You did it with the other stairs that go onto the mountain, but not with this.
-The pathways are well spaced and look natural
-The idea of using the darker water for showing where the rocks extend below the water's surface is neat.
And my map:
I'm worried most about the mountains. Mine never feel natural. Any advice?