[Daishichimaru]

Before you try anything funky, apply a Normal modifier and check the Unify Normals box and then see if they all show up. If it looks inside-out, check the Flip Normals check box and it should be fine. If that doesn't work, post a render here and I'll see what I can do. (For the interested, normals control which way a face faces. Each face (composed of two triangular polygons) is by default one sided and faces away from the center of an object. Flipping normals results in an object appearing "inside-out", or somewhat see-through, which is useful for creating interior rooms since you can flip normals on a box and it looks like a room from the inside. Some things will flip around the normals so that some face one way and others another. It's much better to fix normals than to use a two sided texture, for two sided textures have side effects to transparency and some other things.)