Working on 3D scene Part 1

Making a texture for a scene is one thing but actually applying the texture to a plain and seeing what it looks like in 3D is something else. After making different layers and adding bridges, trees, towers.. I've decided it's probably best to start over and try making a different texture from the map AFTER I've created the 3D model. Here's what it looked like with the texture I made in Photoshop: