I think I got it. The 1024x rockydirt texture was getting blurry when scaled, so I created a seamless texture then tiled it to 2048x and made it seamless again. After that it was a matter of balance between the two textures/ transparencies, etc.
Here's the latest (never thought I'd be learning GIMP to create a personal MW texture
):
Upper Balmora
http://i2.photobucket.com/albums/y44/jpook730/Tx_WG_cobblestones_01-1.png
http://i2.photobucket.com/albums/y44/jpook730/MGEScreenshot15.png
http://i2.photobucket.com/albums/y44/jpook730/MGEScreenshot16.png
Lower Balmora
http://i2.photobucket.com/albums/y44/jpook730/tx_wg_road_01-1.png
http://i2.photobucket.com/albums/y44/jpook730/MGEScreenshot12.png
http://i2.photobucket.com/albums/y44/jpook730/MGEScreenshot14.png
OT: why do Photobucket compressed images look so bad?