looking good! Maybe it would be helpful to paint height maps and use a utility to derive normals from those? e.g. Substance Designer or I believe the engine library even has a material function for that.
Here's the current textures I'm using for the whole thing. I'll probably double this by the time I'm done which isn't too bad All the textures are hand painted including the normal maps. It was too complicated to try and bake a normal map down when my texel density is about 32px/meter. I pretty much just painted specific…