Arsheesh,

I got lost between unifying the oceans and bump mapping the height map.
The 'Land Bumps' layer is referred to in the Unifying the Oceans section, but is not actually created until the following section. So, it was unclear on the first read of Unifying the Oceans which layer should be merged onto 'Temperate'. And in Bump Mapping the Height Map it wasn't exactly clear what you meant in the first line when you refer to the 'Color Map'.
I think I understood your intent though.

Test Piece:
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I'll have to spend more time blending the mountains in and getting a river mask that works on future maps. I was rushing to get to something that looked finished, so I used a big brush with high opacity to blend the mountains. The strokes are still visible in some places.