Those are definitely a step in the right direction. I think I like the sandstone-based terrainsets (stormlands, dorne, red mountains) a bit more than the limestone-based sets at the moment; I still feel the latter struggle a little bit from seeming stylistically inconsistent with the other blocks in the pack, but I can't quite put my finger on it.
Also, I'd remove the top texture on the sandstone-based sets and just have the same texture on all faces. I get the intended purpose of the top texture, but it looks kind of strange and messy on slopes where you just have alternating flat/rocky textures.
Also, I'd remove the top texture on the sandstone-based sets and just have the same texture on all faces. I get the intended purpose of the top texture, but it looks kind of strange and messy on slopes where you just have alternating flat/rocky textures.