Not bad! I'm realizing the limitations of a bump map, but I think it will work well enough for realtime 3D. It's not horrible when rendered, but very flat looking details. What I've learned so far is that I'd need to model all the details into the geometry and then generate a normal map from a detailed mesh. Applying the normal map to this simplified geometry would get the detailed look I want without adding more polygons.
Textures still need a bit of work, but I'm learning a ton.