I don't see the problem with his build resembling C00lgirl's. This is a building game... if someone posted something in gallery, it can be seen and the techniques can be used by all. You can't patent a build design. And what if Pngu was just basing the house off of, gee, I don't know, real life? He can use similar styles- They help him in becoming better at building his own homes, and more and more of his own designs.